diff --git a/l10n/br/viewer.ftl b/l10n/br/viewer.ftl
index bd9da0d4f..6bb5c851a 100644
--- a/l10n/br/viewer.ftl
+++ b/l10n/br/viewer.ftl
@@ -206,7 +206,7 @@ pdfjs-find-previous-button-label = Kent
 pdfjs-find-next-button =
     .title = Kavout an tamm frazenn war-lerc'h o klotañ ganti
 pdfjs-find-next-button-label = War-lerc'h
-pdfjs-find-highlight-checkbox = Usskediñ pep tra
+pdfjs-find-highlight-checkbox = Sklêrijennañ pep tra
 pdfjs-find-match-case-checkbox-label = Teurel evezh ouzh ar pennlizherennoù
 pdfjs-find-match-diacritics-checkbox-label = Doujañ d’an tiredoù
 pdfjs-find-entire-word-checkbox-label = Gerioù a-bezh
@@ -272,6 +272,13 @@ pdfjs-editor-ink-button-label = Tresañ
 pdfjs-editor-stamp-button =
     .title = Ouzhpennañ pe aozañ skeudennoù
 pdfjs-editor-stamp-button-label = Ouzhpennañ pe aozañ skeudennoù
+pdfjs-editor-highlight-button =
+    .title = Sklerijennañ
+pdfjs-editor-highlight-button-label = Sklerijennañ
+pdfjs-highlight-floating-button1 =
+    .title = Sklerijennañ
+    .aria-label = Sklerijennañ
+pdfjs-highlight-floating-button-label = Sklerijennañ
 
 ## Default editor aria labels
 
@@ -304,6 +311,9 @@ pdfjs-ink-canvas =
 pdfjs-editor-alt-text-add-description-label = Ouzhpennañ un deskrivadur
 pdfjs-editor-alt-text-cancel-button = Nullañ
 pdfjs-editor-alt-text-save-button = Enrollañ
+# .placeholder: This is a placeholder for the alt text input area
+pdfjs-editor-alt-text-textarea =
+    .placeholder = Da skouer, “Ur paotr yaouank ouzh taol o tebriñ boued”
 
 ## Editor resizers
 ## This is used in an aria label to help to understand the role of the resizer.
@@ -311,6 +321,8 @@ pdfjs-editor-alt-text-save-button = Enrollañ
 
 ## Color picker
 
+# This means "Color used to highlight text"
+pdfjs-editor-highlight-colorpicker-label = Liv sklêrijennañ
 pdfjs-editor-colorpicker-button =
     .title = Cheñch liv
 pdfjs-editor-colorpicker-yellow =
diff --git a/l10n/bs/viewer.ftl b/l10n/bs/viewer.ftl
index 546767d08..369e95fc7 100644
--- a/l10n/bs/viewer.ftl
+++ b/l10n/bs/viewer.ftl
@@ -39,6 +39,18 @@ pdfjs-open-file-button-label = Otvori
 pdfjs-print-button =
     .title = Štampaj
 pdfjs-print-button-label = Štampaj
+pdfjs-save-button =
+    .title = Sačuvaj
+pdfjs-save-button-label = Sačuvaj
+# Used in Firefox for Android as a tooltip for the download button (“download” is a verb).
+pdfjs-download-button =
+    .title = Preuzmi
+# Used in Firefox for Android as a label for the download button (“download” is a verb).
+# Length of the translation matters since we are in a mobile context, with limited screen estate.
+pdfjs-download-button-label = Preuzmi
+pdfjs-bookmark-button =
+    .title = Trenutna stranica (Prikaži URL sa trenutne stranice)
+pdfjs-bookmark-button-label = Trenutna stranica
 
 ##  Secondary toolbar and context menu
 
@@ -63,6 +75,27 @@ pdfjs-cursor-text-select-tool-button-label = Alat za označavanje teksta
 pdfjs-cursor-hand-tool-button =
     .title = Omogući ručni alat
 pdfjs-cursor-hand-tool-button-label = Ručni alat
+pdfjs-scroll-page-button =
+    .title = Koristite pomicanje stranice
+pdfjs-scroll-page-button-label = Pomicanje stranice
+pdfjs-scroll-vertical-button =
+    .title = Koristite vertikalno pomicanje
+pdfjs-scroll-vertical-button-label = Vertikalno pomicanje
+pdfjs-scroll-horizontal-button =
+    .title = Koristite horizontalno pomicanje
+pdfjs-scroll-horizontal-button-label = Horizontalno pomicanje
+pdfjs-scroll-wrapped-button =
+    .title = Koristite omotno pomicanje
+pdfjs-scroll-wrapped-button-label = Omotno pomicanje
+pdfjs-spread-none-button =
+    .title = Ne izrađuj duplerice
+pdfjs-spread-none-button-label = Bez duplerica
+pdfjs-spread-odd-button =
+    .title = Izradi duplerice koje počinju s neparnim stranicama
+pdfjs-spread-odd-button-label = Neparne duplerice
+pdfjs-spread-even-button =
+    .title = Izradi duplerice koje počinju s parnim stranicama
+pdfjs-spread-even-button-label = Parne duplerice
 
 ## Document properties dialog
 
@@ -72,6 +105,14 @@ pdfjs-document-properties-button-label = Svojstva dokumenta...
 pdfjs-document-properties-file-name = Naziv fajla:
 pdfjs-document-properties-file-size = Veličina fajla:
 # Variables:
+#   $kb (Number) - the PDF file size in kilobytes
+#   $b (Number) - the PDF file size in bytes
+pdfjs-document-properties-size-kb = { NUMBER($kb, maximumSignificantDigits: 3) } KB ({ $b } bajtova)
+# Variables:
+#   $mb (Number) - the PDF file size in megabytes
+#   $b (Number) - the PDF file size in bytes
+pdfjs-document-properties-size-mb = { NUMBER($mb, maximumSignificantDigits: 3) } MB ({ $b } bajtova)
+# Variables:
 #   $size_kb (Number) - the PDF file size in kilobytes
 #   $size_b (Number) - the PDF file size in bytes
 pdfjs-document-properties-kb = { $size_kb } KB ({ $size_b } bajta)
@@ -86,6 +127,9 @@ pdfjs-document-properties-keywords = Ključne riječi:
 pdfjs-document-properties-creation-date = Datum kreiranja:
 pdfjs-document-properties-modification-date = Datum promjene:
 # Variables:
+#   $dateObj (Date) - the creation/modification date and time of the PDF file
+pdfjs-document-properties-date-time-string = { DATETIME($dateObj, dateStyle: "short", timeStyle: "medium") }
+# Variables:
 #   $date (Date) - the creation/modification date of the PDF file
 #   $time (Time) - the creation/modification time of the PDF file
 pdfjs-document-properties-date-string = { $date }, { $time }
@@ -115,6 +159,11 @@ pdfjs-document-properties-page-size-dimension-name-string = { $width } × { $hei
 
 ##
 
+# The linearization status of the document; usually called "Fast Web View" in
+# English locales of Adobe software.
+pdfjs-document-properties-linearized = Brzi web pregled:
+pdfjs-document-properties-linearized-yes = Da
+pdfjs-document-properties-linearized-no = Ne
 pdfjs-document-properties-close-button = Zatvori
 
 ## Print
@@ -131,6 +180,8 @@ pdfjs-printing-not-ready = Upozorenje: PDF nije u potpunosti učitan za štampan
 
 pdfjs-toggle-sidebar-button =
     .title = Uključi/isključi bočnu traku
+pdfjs-toggle-sidebar-notification-button =
+    .title = Uključi/isključi bočnu traku (dokument sadrži obris/priloge/slojeve)
 pdfjs-toggle-sidebar-button-label = Uključi/isključi bočnu traku
 pdfjs-document-outline-button =
     .title = Prikaži outline dokumenta (dvoklik za skupljanje/širenje svih stavki)
@@ -138,12 +189,19 @@ pdfjs-document-outline-button-label = Konture dokumenta
 pdfjs-attachments-button =
     .title = Prikaži priloge
 pdfjs-attachments-button-label = Prilozi
+pdfjs-layers-button =
+    .title = Prikaži slojeve (dvostruki klik da biste vratili sve slojeve na zadano stanje)
+pdfjs-layers-button-label = Slojevi
 pdfjs-thumbs-button =
     .title = Prikaži thumbnailove
 pdfjs-thumbs-button-label = Thumbnailovi
+pdfjs-current-outline-item-button =
+    .title = Pronađi trenutnu stavku strukture
+pdfjs-current-outline-item-button-label = Trenutna stavka strukture
 pdfjs-findbar-button =
     .title = Pronađi u dokumentu
 pdfjs-findbar-button-label = Pronađi
+pdfjs-additional-layers = Dodatni slojevi
 
 ## Thumbnails panel item (tooltip and alt text for images)
 
@@ -169,8 +227,27 @@ pdfjs-find-next-button =
 pdfjs-find-next-button-label = Sljedeće
 pdfjs-find-highlight-checkbox = Označi sve
 pdfjs-find-match-case-checkbox-label = Osjetljivost na karaktere
+pdfjs-find-match-diacritics-checkbox-label = Podudaranje dijakritika
+pdfjs-find-entire-word-checkbox-label = Cijele riječi
 pdfjs-find-reached-top = Dostigao sam vrh dokumenta, nastavljam sa dna
 pdfjs-find-reached-bottom = Dostigao sam kraj dokumenta, nastavljam sa vrha
+# Variables:
+#   $current (Number) - the index of the currently active find result
+#   $total (Number) - the total number of matches in the document
+pdfjs-find-match-count =
+    { $total ->
+        [one] { $current } od { $total } podudaranje
+        [few] { $current } od { $total } podudaranja
+       *[other] { $current } od { $total } podudaranja
+    }
+# Variables:
+#   $limit (Number) - the maximum number of matches
+pdfjs-find-match-count-limit =
+    { $limit ->
+        [one] Više od { $limit } podudaranja
+        [few] Više od { $limit } podudaranja
+       *[other] Više od { $limit } podudaranja
+    }
 pdfjs-find-not-found = Fraza nije pronađena
 
 ## Predefined zoom values
@@ -185,6 +262,10 @@ pdfjs-page-scale-percent = { $scale }%
 
 ## PDF page
 
+# Variables:
+#   $page (Number) - the page number
+pdfjs-page-landmark =
+    .aria-label = Stranica { $page }
 
 ## Loading indicator messages
 
@@ -196,6 +277,10 @@ pdfjs-rendering-error = Došlo je do greške prilikom renderiranja strane.
 
 ## Annotations
 
+# Variables:
+#   $date (Date) - the modification date of the annotation
+#   $time (Time) - the modification time of the annotation
+pdfjs-annotation-date-string = { $date }, { $time }
 # .alt: This is used as a tooltip.
 # Variables:
 #   $type (String) - an annotation type from a list defined in the PDF spec
@@ -203,6 +288,9 @@ pdfjs-rendering-error = Došlo je do greške prilikom renderiranja strane.
 # Some common types are e.g.: "Check", "Text", "Comment", "Note"
 pdfjs-text-annotation-type =
     .alt = [{ $type } pribilješka]
+# Variables:
+#   $dateObj (Date) - the modification date and time of the annotation
+pdfjs-annotation-date-time-string = { DATETIME($dateObj, dateStyle: "short", timeStyle: "medium") }
 
 ## Password
 
@@ -214,60 +302,317 @@ pdfjs-web-fonts-disabled = Web fontovi su onemogućeni: nemoguće koristiti uba
 
 ## Editing
 
+pdfjs-editor-free-text-button =
+    .title = Tekst
+pdfjs-editor-free-text-button-label = Tekst
+pdfjs-editor-ink-button =
+    .title = Crtanje
+pdfjs-editor-ink-button-label = Crtanje
+pdfjs-editor-stamp-button =
+    .title = Dodajte ili uredite slike
+pdfjs-editor-stamp-button-label = Dodajte ili uredite slike
+pdfjs-editor-highlight-button =
+    .title = Istaknite
+pdfjs-editor-highlight-button-label = Istaknite
+pdfjs-highlight-floating-button1 =
+    .title = Istaknite
+    .aria-label = Istaknite
+pdfjs-highlight-floating-button-label = Istaknite
+pdfjs-editor-signature-button =
+    .title = Dodaj potpis
+pdfjs-editor-signature-button-label = Dodaj potpis
 
 ## Default editor aria labels
 
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = Uređivač istaknutih elemenata
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = Uređivač crteža
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Uređivač potpisa: { $description }
+pdfjs-editor-stamp-editor =
+    .aria-label = Uređivač slika
 
 ## Remove button for the various kind of editor.
 
+pdfjs-editor-remove-ink-button =
+    .title = Ukloni crtež
+pdfjs-editor-remove-freetext-button =
+    .title = Ukloni tekst
+pdfjs-editor-remove-stamp-button =
+    .title = Ukloni sliku
+pdfjs-editor-remove-highlight-button =
+    .title = Ukloni istaknuti dio
+pdfjs-editor-remove-signature-button =
+    .title = Ukloni potpis
 
 ##
 
+# Editor Parameters
+pdfjs-editor-free-text-color-input = Boja
+pdfjs-editor-free-text-size-input = Veličina
+pdfjs-editor-ink-color-input = Boja
+pdfjs-editor-ink-thickness-input = Debljina
+pdfjs-editor-ink-opacity-input = Neprozirnost
+pdfjs-editor-stamp-add-image-button =
+    .title = Dodaj sliku
+pdfjs-editor-stamp-add-image-button-label = Dodaj sliku
+# This refers to the thickness of the line used for free highlighting (not bound to text)
+pdfjs-editor-free-highlight-thickness-input = Debljina
+pdfjs-editor-free-highlight-thickness-title =
+    .title = Promijenite debljinu prilikom označavanja stavki koje nisu tekst
+pdfjs-editor-add-signature-container =
+    .aria-label = Kontrole potpisa i sačuvani potpisi
+pdfjs-editor-signature-add-signature-button =
+    .title = Dodaj novi potpis
+pdfjs-editor-signature-add-signature-button-label = Dodaj novi potpis
+# Used on the button to use an already saved signature.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-add-saved-signature-button =
+    .title = Sačuvani potpis: { $description }
+# .default-content is used as a placeholder in an empty text editor.
+pdfjs-free-text2 =
+    .aria-label = Uređivač teksta
+    .default-content = Počnite kucati…
+pdfjs-free-text =
+    .aria-label = Uređivač teksta
+pdfjs-free-text-default-content = Počnite kucati…
+pdfjs-ink =
+    .aria-label = Uređivač crtanja
+pdfjs-ink-canvas =
+    .aria-label = Slika koju je kreirao korisnik
 
 ## Alt-text dialog
 
+pdfjs-editor-alt-text-button-label = Alternativni tekst
+pdfjs-editor-alt-text-edit-button =
+    .aria-label = Uredi alternativni tekst
+pdfjs-editor-alt-text-edit-button-label = Uredi alternativni tekst
+pdfjs-editor-alt-text-dialog-label = Odaberite opciju
+pdfjs-editor-alt-text-dialog-description = Alternativni tekst (Alt tekst) pomaže kada ljudi ne mogu vidjeti sliku ili kada se ona ne učitava.
+pdfjs-editor-alt-text-add-description-label = Dodajte opis
+pdfjs-editor-alt-text-add-description-description = Ciljajte na 1-2 rečenice koje opisuju temu, okruženje ili radnju.
+pdfjs-editor-alt-text-mark-decorative-label = Označi kao dekorativno
+pdfjs-editor-alt-text-mark-decorative-description = Ovo se koristi za ukrasne slike, poput okvira ili vodenih žigova.
+pdfjs-editor-alt-text-cancel-button = Otkaži
+pdfjs-editor-alt-text-save-button = Sačuvaj
+pdfjs-editor-alt-text-decorative-tooltip = Označeno kao dekorativno
+# .placeholder: This is a placeholder for the alt text input area
+pdfjs-editor-alt-text-textarea =
+    .placeholder = Na primjer, „Mladić sjeda za stol da jede obrok“
+# Alternative text (alt text) helps when people can't see the image.
+pdfjs-editor-alt-text-button =
+    .aria-label = Alternativni tekst
 
 ## Editor resizers
 ## This is used in an aria label to help to understand the role of the resizer.
 
+pdfjs-editor-resizer-label-top-left = Gornji lijevi ugao — promjena veličine
+pdfjs-editor-resizer-label-top-middle = Gore u sredini — promijeni veličinu
+pdfjs-editor-resizer-label-top-right = Gornji desni ugao — promijeni veličinu
+pdfjs-editor-resizer-label-middle-right = Sredina desno — promijeni veličinu
+pdfjs-editor-resizer-label-bottom-right = Donji desni ugao — promijeni veličinu
+pdfjs-editor-resizer-label-bottom-middle = Donji srednji dio — promijeni veličinu
+pdfjs-editor-resizer-label-bottom-left = Donji lijevi ugao — promijeni veličinu
+pdfjs-editor-resizer-label-middle-left = Sredina lijevo — promijeni veličinu
+pdfjs-editor-resizer-top-left =
+    .aria-label = Gornji lijevi ugao — promjena veličine
+pdfjs-editor-resizer-top-middle =
+    .aria-label = Gore u sredini — promijeni veličinu
+pdfjs-editor-resizer-top-right =
+    .aria-label = Gornji desni ugao — promijeni veličinu
+pdfjs-editor-resizer-middle-right =
+    .aria-label = Sredina desno — promijeni veličinu
+pdfjs-editor-resizer-bottom-right =
+    .aria-label = Donji desni ugao — promijeni veličinu
+pdfjs-editor-resizer-bottom-middle =
+    .aria-label = Donji srednji dio — promijeni veličinu
+pdfjs-editor-resizer-bottom-left =
+    .aria-label = Donji lijevi ugao — promijeni veličinu
+pdfjs-editor-resizer-middle-left =
+    .aria-label = Sredina lijevo — promijeni veličinu
 
 ## Color picker
 
+# This means "Color used to highlight text"
+pdfjs-editor-highlight-colorpicker-label = Boja isticanja
+pdfjs-editor-colorpicker-button =
+    .title = Promijeni boju
+pdfjs-editor-colorpicker-dropdown =
+    .aria-label = Izbor boja
+pdfjs-editor-colorpicker-yellow =
+    .title = Žuta
+pdfjs-editor-colorpicker-green =
+    .title = Zelena
+pdfjs-editor-colorpicker-blue =
+    .title = Plava
+pdfjs-editor-colorpicker-pink =
+    .title = Roza
+pdfjs-editor-colorpicker-red =
+    .title = Crvena
 
 ## Show all highlights
 ## This is a toggle button to show/hide all the highlights.
 
+pdfjs-editor-highlight-show-all-button-label = Prikaži sve
+pdfjs-editor-highlight-show-all-button =
+    .title = Prikaži sve
 
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Uredi alternativni tekst (opis slike)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Dodaj alternativni tekst (opis slike)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Ovdje napišite svoj opis…
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Kratak opis za osobe koje ne mogu vidjeti sliku ili kada se slika ne učitava.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Ovaj alternativni tekst je kreiran automatski i moguće je da je netačan.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Saznajte više
+pdfjs-editor-new-alt-text-create-automatically-button-label = Automatski kreiraj alternativni tekst
+pdfjs-editor-new-alt-text-not-now-button = Ne sada
+pdfjs-editor-new-alt-text-error-title = Nije moguće automatski kreirati alternativni tekst
+pdfjs-editor-new-alt-text-error-description = Molimo vas da napišete vlastiti alternativni tekst ili pokušate ponovo kasnije.
+pdfjs-editor-new-alt-text-error-close-button = Zatvori
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Preuzimanje alternativnog tekstualnog AI modela ({ $downloadedSize } od { $totalSize } MB)
+    .aria-valuetext = Preuzimanje alternativnog tekstualnog AI modela ({ $downloadedSize } od { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button =
+    .aria-label = Alternativni tekst je dodan
+pdfjs-editor-new-alt-text-added-button-label = Alternativni tekst je dodan
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button =
+    .aria-label = Nedostaje alternativni tekst
+pdfjs-editor-new-alt-text-missing-button-label = Nedostaje alternativni tekst
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button =
+    .aria-label = Alternativni tekst recenzije
+pdfjs-editor-new-alt-text-to-review-button-label = Alternativni tekst recenzije
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Automatski kreirano: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Postavke alternativnog teksta slike
+pdfjs-image-alt-text-settings-button-label = Postavke alternativnog teksta slike
+pdfjs-editor-alt-text-settings-dialog-label = Postavke alternativnog teksta slike
+pdfjs-editor-alt-text-settings-automatic-title = Automatski alternativni tekst
+pdfjs-editor-alt-text-settings-create-model-button-label = Automatski kreiraj alternativni tekst
+pdfjs-editor-alt-text-settings-create-model-description = Predlaže opise kako bi pomogao ljudima koji ne vide sliku ili kada se slika ne učitava.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Alternativni tekst AI model ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Radi lokalno na vašem uređaju tako da vaši podaci ostaju privatni. Potrebno za automatski alternativni tekst.
+pdfjs-editor-alt-text-settings-delete-model-button = Izbriši
+pdfjs-editor-alt-text-settings-download-model-button = Preuzmi
+pdfjs-editor-alt-text-settings-downloading-model-button = Preuzimam…
+pdfjs-editor-alt-text-settings-editor-title = Uređivač alternativnog teksta
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Odmah prikaži uređivač alternativnog teksta prilikom dodavanja slike
+pdfjs-editor-alt-text-settings-show-dialog-description = Pomaže vam da osigurate da sve vaše slike imaju alternativni tekst.
+pdfjs-editor-alt-text-settings-close-button = Zatvori
 
 ## "Annotations removed" bar
 
+pdfjs-editor-undo-bar-message-highlight = Istaknuto je uklonjeno
+pdfjs-editor-undo-bar-message-freetext = Tekst uklonjen
+pdfjs-editor-undo-bar-message-ink = Crtež uklonjen
+pdfjs-editor-undo-bar-message-stamp = Slika uklonjena
+pdfjs-editor-undo-bar-message-signature = Potpis uklonjen
+# Variables:
+#   $count (Number) - the number of removed annotations.
+pdfjs-editor-undo-bar-message-multiple =
+    { $count ->
+        [one] { $count } bilješka uklonjena
+        [few] { $count } bilješke uklonjene
+       *[other] { $count } bilješki uklonjeno
+    }
+pdfjs-editor-undo-bar-undo-button =
+    .title = Poništi
+pdfjs-editor-undo-bar-undo-button-label = Poništi
+pdfjs-editor-undo-bar-close-button =
+    .title = Zatvori
+pdfjs-editor-undo-bar-close-button-label = Zatvori
 
 ## Add a signature dialog
 
+pdfjs-editor-add-signature-dialog-label = Ovaj modalni prozor omogućava korisniku da kreira potpis koji će dodati PDF dokumentu. Korisnik može urediti ime (koje služi i kao alternativni tekst) i opcionalno sačuvati potpis za ponovnu upotrebu.
+pdfjs-editor-add-signature-dialog-title = Dodaj potpis
 
 ## Tab names
 
+# Type is a verb (you can type your name as signature)
+pdfjs-editor-add-signature-type-button = Ukucaj
+    .title = Ukucaj
+# Draw is a verb (you can draw your signature)
+pdfjs-editor-add-signature-draw-button = Napiši
+    .title = Napiši
+pdfjs-editor-add-signature-image-button = Slika
+    .title = Slika
 
 ## Tab panels
 
+pdfjs-editor-add-signature-type-input =
+    .aria-label = Ukucajte svoj potpis
+    .placeholder = Ukucajte svoj potpis
+pdfjs-editor-add-signature-draw-placeholder = Napišite svoj potpis
+pdfjs-editor-add-signature-draw-thickness-range-label = Debljina
+# Variables:
+#   $thickness (Number) - the thickness (in pixels) of the line used to draw a signature.
+pdfjs-editor-add-signature-draw-thickness-range =
+    .title = Debljina pisanja: { $thickness }
+pdfjs-editor-add-signature-image-placeholder = Prevucite datoteku ovdje da biste je učitali
+pdfjs-editor-add-signature-image-browse-link =
+    { PLATFORM() ->
+        [macos] Ili odaberite slikovne datoteke
+       *[other] Ili pregledajte slikovne datoteke
+    }
 
 ## Controls
 
+pdfjs-editor-add-signature-description-label = Opis (alternativni tekst)
+pdfjs-editor-add-signature-description-input =
+    .title = Opis (alternativni tekst)
+pdfjs-editor-add-signature-description-default-when-drawing = Potpis
+pdfjs-editor-add-signature-clear-button-label = Očisti potpis
+pdfjs-editor-add-signature-clear-button =
+    .title = Očisti potpis
+pdfjs-editor-add-signature-save-checkbox = Sačuvaj potpis
+pdfjs-editor-add-signature-save-warning-message = Dostigli ste ograničenje od 5 sačuvanih potpisa. Uklonite jedan da biste sačuvali više.
+pdfjs-editor-add-signature-image-upload-error-title = Nije moguće učitati sliku
+pdfjs-editor-add-signature-image-upload-error-description = Provjerite mrežnu vezu ili pokušajte s drugom slikom.
+pdfjs-editor-add-signature-error-close-button = Zatvori
 
 ## Dialog buttons
 
+pdfjs-editor-add-signature-cancel-button = Otkaži
+pdfjs-editor-add-signature-add-button = Dodaj
+pdfjs-editor-edit-signature-update-button = Ažuriraj
 
 ## Main menu for adding/removing signatures
 
+pdfjs-editor-delete-signature-button1 =
+    .title = Ukloni sačuvani potpis
+pdfjs-editor-delete-signature-button-label1 = Ukloni sačuvani potpis
 
 ## Editor toolbar
 
+pdfjs-editor-add-signature-edit-button-label = Uredi opis
 
 ## Edit signature description dialog
 
+pdfjs-editor-edit-signature-dialog-title = Uredi opis
diff --git a/l10n/el/viewer.ftl b/l10n/el/viewer.ftl
index b8a169dcd..96538ca2e 100644
--- a/l10n/el/viewer.ftl
+++ b/l10n/el/viewer.ftl
@@ -88,7 +88,7 @@ pdfjs-scroll-wrapped-button =
     .title = Χρήση κυκλικής κύλισης
 pdfjs-scroll-wrapped-button-label = Κυκλική κύλιση
 pdfjs-spread-none-button =
-    .title = Να μη γίνει σύνδεση επεκτάσεων σελίδων
+    .title = Να μην γίνει σύνδεση των επεκτάσεων σελίδων
 pdfjs-spread-none-button-label = Χωρίς επεκτάσεις
 pdfjs-spread-odd-button =
     .title = Σύνδεση επεκτάσεων σελίδων ξεκινώντας από τις μονές σελίδες
diff --git a/l10n/en-CA/viewer.ftl b/l10n/en-CA/viewer.ftl
index 4417bbfdc..3e37b3066 100644
--- a/l10n/en-CA/viewer.ftl
+++ b/l10n/en-CA/viewer.ftl
@@ -328,6 +328,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Drawing editor
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Signature editor: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Image editor
 
diff --git a/l10n/gl/viewer.ftl b/l10n/gl/viewer.ftl
index 2b8b42517..dc5c8677b 100644
--- a/l10n/gl/viewer.ftl
+++ b/l10n/gl/viewer.ftl
@@ -105,6 +105,14 @@ pdfjs-document-properties-button-label = Propiedades do documento…
 pdfjs-document-properties-file-name = Nome do ficheiro:
 pdfjs-document-properties-file-size = Tamaño do ficheiro:
 # Variables:
+#   $kb (Number) - the PDF file size in kilobytes
+#   $b (Number) - the PDF file size in bytes
+pdfjs-document-properties-size-kb = { NUMBER($kb, maximumSignificantDigits: 3) } KB ({ $b } bytes)
+# Variables:
+#   $mb (Number) - the PDF file size in megabytes
+#   $b (Number) - the PDF file size in bytes
+pdfjs-document-properties-size-mb = { NUMBER($mb, maximumSignificantDigits: 3) } MB ({ $b } bytes)
+# Variables:
 #   $size_kb (Number) - the PDF file size in kilobytes
 #   $size_b (Number) - the PDF file size in bytes
 pdfjs-document-properties-kb = { $size_kb } KB ({ $size_b } bytes)
@@ -119,6 +127,9 @@ pdfjs-document-properties-keywords = Palabras clave:
 pdfjs-document-properties-creation-date = Data de creación:
 pdfjs-document-properties-modification-date = Data de modificación:
 # Variables:
+#   $dateObj (Date) - the creation/modification date and time of the PDF file
+pdfjs-document-properties-date-time-string = { DATETIME($dateObj, dateStyle: "short", timeStyle: "medium") }
+# Variables:
 #   $date (Date) - the creation/modification date of the PDF file
 #   $time (Time) - the creation/modification time of the PDF file
 pdfjs-document-properties-date-string = { $date }, { $time }
@@ -275,6 +286,9 @@ pdfjs-annotation-date-string = { $date }, { $time }
 # Some common types are e.g.: "Check", "Text", "Comment", "Note"
 pdfjs-text-annotation-type =
     .alt = [Anotación { $type }]
+# Variables:
+#   $dateObj (Date) - the modification date and time of the annotation
+pdfjs-annotation-date-time-string = { DATETIME($dateObj, dateStyle: "short", timeStyle: "medium") }
 
 ## Password
 
@@ -295,18 +309,45 @@ pdfjs-editor-ink-button-label = Debuxo
 pdfjs-editor-stamp-button =
     .title = Engadir ou editar imaxes
 pdfjs-editor-stamp-button-label = Engadir ou editar imaxes
+pdfjs-editor-highlight-button =
+    .title = Destacar
+pdfjs-editor-highlight-button-label = Destacar
+pdfjs-highlight-floating-button1 =
+    .title = Destacar
+    .aria-label = Destacar
+pdfjs-highlight-floating-button-label = Destacar
+pdfjs-editor-signature-button =
+    .title = Engadir sinatura
+pdfjs-editor-signature-button-label = Engadir sinatura
 
 ## Default editor aria labels
 
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = Editor de destacados
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = Editor de debuxos
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Editor de sinaturas: { $description }
+pdfjs-editor-stamp-editor =
+    .aria-label = Editor de imaxes
 
 ## Remove button for the various kind of editor.
 
+pdfjs-editor-remove-ink-button =
+    .title = Eliminar debuxo
 pdfjs-editor-remove-freetext-button =
     .title = Eliminar o texto
 pdfjs-editor-remove-stamp-button =
     .title = Eliminar a imaxe
 pdfjs-editor-remove-highlight-button =
     .title = Eliminar o resaltado
+pdfjs-editor-remove-signature-button =
+    .title = Eliminar sinatura
 
 ##
 
@@ -321,6 +362,22 @@ pdfjs-editor-stamp-add-image-button =
 pdfjs-editor-stamp-add-image-button-label = Engadir imaxe
 # This refers to the thickness of the line used for free highlighting (not bound to text)
 pdfjs-editor-free-highlight-thickness-input = Grosor
+pdfjs-editor-free-highlight-thickness-title =
+    .title = Cambiar o grosor ao resaltar elementos que non sexan texto
+pdfjs-editor-add-signature-container =
+    .aria-label = Controis de sinaturas e sinaturas gardadas
+pdfjs-editor-signature-add-signature-button =
+    .title = Engadir nova sinatura
+pdfjs-editor-signature-add-signature-button-label = Engadir nova sinatura
+# Used on the button to use an already saved signature.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-add-saved-signature-button =
+    .title = Sinatura gardada: { $description }
+# .default-content is used as a placeholder in an empty text editor.
+pdfjs-free-text2 =
+    .aria-label = Editor de texto
+    .default-content = Empeza a escribir...
 pdfjs-free-text =
     .aria-label = Editor de texto
 pdfjs-free-text-default-content = Comezar a teclear…
@@ -332,9 +389,13 @@ pdfjs-ink-canvas =
 ## Alt-text dialog
 
 pdfjs-editor-alt-text-button-label = Texto alternativo
+pdfjs-editor-alt-text-edit-button =
+    .aria-label = Editar o texto alternativo
 pdfjs-editor-alt-text-edit-button-label = Editar o texto alternativo
 pdfjs-editor-alt-text-dialog-label = Escoller unha opción
+pdfjs-editor-alt-text-dialog-description = O texto alternativo (texto alt) axuda cando as persoas non poden ver a imaxe ou cando non se carga.
 pdfjs-editor-alt-text-add-description-label = Engadir unha descrición
+pdfjs-editor-alt-text-add-description-description = Tenta escribir 1-2 frases que describan o tema, o escenario ou as accións.
 pdfjs-editor-alt-text-mark-decorative-label = Marcar como decorativo
 pdfjs-editor-alt-text-mark-decorative-description = Utilízase para imaxes ornamentais, como bordos ou marcas de auga.
 pdfjs-editor-alt-text-cancel-button = Cancelar
@@ -343,6 +404,9 @@ pdfjs-editor-alt-text-decorative-tooltip = Marcado como decorativo
 # .placeholder: This is a placeholder for the alt text input area
 pdfjs-editor-alt-text-textarea =
     .placeholder = Por exemplo, «Un mozo séntase á mesa para comer»
+# Alternative text (alt text) helps when people can't see the image.
+pdfjs-editor-alt-text-button =
+    .aria-label = Texto alternativo
 
 ## Editor resizers
 ## This is used in an aria label to help to understand the role of the resizer.
@@ -374,41 +438,178 @@ pdfjs-editor-resizer-middle-left =
 
 ## Color picker
 
+# This means "Color used to highlight text"
+pdfjs-editor-highlight-colorpicker-label = Cor de resaltado
+pdfjs-editor-colorpicker-button =
+    .title = Cambiar de cor
+pdfjs-editor-colorpicker-dropdown =
+    .aria-label = Opcións de cor
+pdfjs-editor-colorpicker-yellow =
+    .title = Amarelo
+pdfjs-editor-colorpicker-green =
+    .title = Verde
+pdfjs-editor-colorpicker-blue =
+    .title = Azul
+pdfjs-editor-colorpicker-pink =
+    .title = Rosa
+pdfjs-editor-colorpicker-red =
+    .title = Vermello
 
 ## Show all highlights
 ## This is a toggle button to show/hide all the highlights.
 
+pdfjs-editor-highlight-show-all-button-label = Amosar todo
+pdfjs-editor-highlight-show-all-button =
+    .title = Amosar todo
 
 ## New alt-text dialog
 ## Group note for entire feature: Alternative text (alt text) helps when people can't see the image. This feature includes a tool to create alt text automatically using an AI model that works locally on the user's device to preserve privacy.
 
+# Modal header positioned above a text box where users can edit the alt text.
+pdfjs-editor-new-alt-text-dialog-edit-label = Editar texto alternativo (descrición da imaxe)
+# Modal header positioned above a text box where users can add the alt text.
+pdfjs-editor-new-alt-text-dialog-add-label = Engadir texto alternativo (descrición da imaxe)
+pdfjs-editor-new-alt-text-textarea =
+    .placeholder = Escribe a túa descrición aquí...
+# This text refers to the alt text box above this description. It offers a definition of alt text.
+pdfjs-editor-new-alt-text-description = Breve descrición para as persoas que non poden ver a imaxe ou cando a imaxe non carga.
+# This is a required legal disclaimer that refers to the automatically created text inside the alt text box above this text. It disappears if the text is edited by a human.
+pdfjs-editor-new-alt-text-disclaimer1 = Este texto alternativo creouse automaticamente e pode ser inexacto.
+pdfjs-editor-new-alt-text-disclaimer-learn-more-url = Máis información
+pdfjs-editor-new-alt-text-create-automatically-button-label = Crea texto alternativo automaticamente
+pdfjs-editor-new-alt-text-not-now-button = Agora non
+pdfjs-editor-new-alt-text-error-title = Non se puido crear o texto alternativo automaticamente
+pdfjs-editor-new-alt-text-error-description = Escribe o teu propio texto alternativo ou téntao de novo máis tarde.
+pdfjs-editor-new-alt-text-error-close-button = Pechar
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+#   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
+pdfjs-editor-new-alt-text-ai-model-downloading-progress = Descargando o modelo de IA de texto alternativo ({ $downloadedSize } de { $totalSize } MB)
+    .aria-valuetext = Descargando o modelo de IA de texto alternativo ({ $downloadedSize } de { $totalSize } MB)
+# This is a button that users can click to edit the alt text they have already added.
+pdfjs-editor-new-alt-text-added-button =
+    .aria-label = Texto alternativo engadido
+pdfjs-editor-new-alt-text-added-button-label = Texto alternativo engadido
+# This is a button that users can click to open the alt text editor and add alt text when it is not present.
+pdfjs-editor-new-alt-text-missing-button =
+    .aria-label = Falta o texto alternativo
+pdfjs-editor-new-alt-text-missing-button-label = Falta o texto alternativo
+# This is a button that opens up the alt text modal where users should review the alt text that was automatically generated.
+pdfjs-editor-new-alt-text-to-review-button =
+    .aria-label = Revisar o texto alternativo
+pdfjs-editor-new-alt-text-to-review-button-label = Revisar o texto alternativo
+# "Created automatically" is a prefix that will be added to the beginning of any alt text that has been automatically generated. After the colon, the user will see/hear the actual alt text description. If the alt text has been edited by a human, this prefix will not appear.
+# Variables:
+#   $generatedAltText (String) - the generated alt-text.
+pdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Creado automaticamente: { $generatedAltText }
 
 ## Image alt-text settings
 
+pdfjs-image-alt-text-settings-button =
+    .title = Configuración do texto alternativo da imaxe
+pdfjs-image-alt-text-settings-button-label = Configuración do texto alternativo da imaxe
+pdfjs-editor-alt-text-settings-dialog-label = Configuración do texto alternativo da imaxe
+pdfjs-editor-alt-text-settings-automatic-title = Texto alternativo automático
+pdfjs-editor-alt-text-settings-create-model-button-label = Crear texto alternativo automaticamente
+pdfjs-editor-alt-text-settings-create-model-description = Suxire descricións para axudar ás persoas que non poden ver a imaxe ou cando a imaxe non se carga.
+# Variables:
+#   $totalSize (Number) - the total size (in MB) of the AI model.
+pdfjs-editor-alt-text-settings-download-model-label = Modelo de IA de texto alternativo ({ $totalSize } MB)
+pdfjs-editor-alt-text-settings-ai-model-description = Funciona localmente no teu dispositivo para que os teus datos se manteñan privados. Necesario para o texto alternativo automático.
+pdfjs-editor-alt-text-settings-delete-model-button = Eliminar
+pdfjs-editor-alt-text-settings-download-model-button = Descargar
+pdfjs-editor-alt-text-settings-downloading-model-button = Descargando…
+pdfjs-editor-alt-text-settings-editor-title = Editor de texto alternativo
+pdfjs-editor-alt-text-settings-show-dialog-button-label = Mostrar o editor de texto alternativo inmediatamente ao engadir unha imaxe
+pdfjs-editor-alt-text-settings-show-dialog-description = Axúdache a asegurarte de que todas as túas imaxes teñan texto alternativo.
+pdfjs-editor-alt-text-settings-close-button = Pechar
 
 ## "Annotations removed" bar
 
+pdfjs-editor-undo-bar-message-highlight = Resaltado eliminado
+pdfjs-editor-undo-bar-message-freetext = Texto eliminado
+pdfjs-editor-undo-bar-message-ink = Debuxo eliminado
+pdfjs-editor-undo-bar-message-stamp = Imaxe eliminada
+pdfjs-editor-undo-bar-message-signature = Sinatura eliminada
+# Variables:
+#   $count (Number) - the number of removed annotations.
+pdfjs-editor-undo-bar-message-multiple =
+    { $count ->
+        [one] Eliminouse { $count } anotación
+       *[other] Elimináronse { $count } anotacións
+    }
+pdfjs-editor-undo-bar-undo-button =
+    .title = Desfacer
+pdfjs-editor-undo-bar-undo-button-label = Desfacer
+pdfjs-editor-undo-bar-close-button =
+    .title = Pechar
+pdfjs-editor-undo-bar-close-button-label = Pechar
 
 ## Add a signature dialog
 
+pdfjs-editor-add-signature-dialog-label = Este modal permite ao usuario crear unha sinatura para engadila a un documento PDF. O usuario pode editar o nome (que tamén serve como texto alternativo) e, opcionalmente, gardar a sinatura para usala novamente.
+pdfjs-editor-add-signature-dialog-title = Engadir unha sinatura
 
 ## Tab names
 
+# Type is a verb (you can type your name as signature)
+pdfjs-editor-add-signature-type-button = Tipo
+    .title = Tipo
+# Draw is a verb (you can draw your signature)
+pdfjs-editor-add-signature-draw-button = Debuxar
+    .title = Debuxar
+pdfjs-editor-add-signature-image-button = Imaxe
+    .title = Imaxe
 
 ## Tab panels
 
+pdfjs-editor-add-signature-type-input =
+    .aria-label = Escribe a túa sinatura
+    .placeholder = Escribe a túa sinatura
+pdfjs-editor-add-signature-draw-placeholder = Debuxa a túa sinatura
+pdfjs-editor-add-signature-draw-thickness-range-label = Grosor
+# Variables:
+#   $thickness (Number) - the thickness (in pixels) of the line used to draw a signature.
+pdfjs-editor-add-signature-draw-thickness-range =
+    .title = Grosor do debuxo: { $thickness }
+pdfjs-editor-add-signature-image-placeholder = Arrastra un ficheiro aquí para cargalo
+pdfjs-editor-add-signature-image-browse-link =
+    { PLATFORM() ->
+        [macos] Ou selecciona ficheiros de imaxes
+       *[other] Ou navega ficheiros de imaxes
+    }
 
 ## Controls
 
+pdfjs-editor-add-signature-description-label = Descrición (texto alternativo)
+pdfjs-editor-add-signature-description-input =
+    .title = Descrición (texto alternativo)
+pdfjs-editor-add-signature-description-default-when-drawing = Sinatura
+pdfjs-editor-add-signature-clear-button-label = Borrar a sinatura
+pdfjs-editor-add-signature-clear-button =
+    .title = Borrar a sinatura
+pdfjs-editor-add-signature-save-checkbox = Gardar a sinatura
+pdfjs-editor-add-signature-save-warning-message = Acadaches o límite de 5 sinaturas gardadas. Elimina unha para gardar máis.
+pdfjs-editor-add-signature-image-upload-error-title = Non se puido cargar a imaxe
+pdfjs-editor-add-signature-image-upload-error-description = Comproba a túa conexión de rede ou proba con outra imaxe.
+pdfjs-editor-add-signature-error-close-button = Pechar
 
 ## Dialog buttons
 
+pdfjs-editor-add-signature-cancel-button = Cancelar
+pdfjs-editor-add-signature-add-button = Engadir
+pdfjs-editor-edit-signature-update-button = Actualizar
 
 ## Main menu for adding/removing signatures
 
+pdfjs-editor-delete-signature-button1 =
+    .title = Eliminar a sinatura gardada
+pdfjs-editor-delete-signature-button-label1 = Eliminar a sinatura gardada
 
 ## Editor toolbar
 
+pdfjs-editor-add-signature-edit-button-label = Editar descrición
 
 ## Edit signature description dialog
 
+pdfjs-editor-edit-signature-dialog-title = Editar descrición
diff --git a/l10n/hr/viewer.ftl b/l10n/hr/viewer.ftl
index 62326b7f9..415e0e03b 100644
--- a/l10n/hr/viewer.ftl
+++ b/l10n/hr/viewer.ftl
@@ -324,6 +324,19 @@ pdfjs-editor-signature-button-label = Dodaj potpis
 
 ## Default editor aria labels
 
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = Uređivač za isticanje teksta
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = Uređivač crteža
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Uređivač potpisa: { $description }
+pdfjs-editor-stamp-editor =
+    .aria-label = Uređivač slika
 
 ## Remove button for the various kind of editor.
 
@@ -335,6 +348,8 @@ pdfjs-editor-remove-stamp-button =
     .title = Ukloni sliku
 pdfjs-editor-remove-highlight-button =
     .title = Ukloni isticanje
+pdfjs-editor-remove-signature-button =
+    .title = Ukloni potpis
 
 ##
 
@@ -351,9 +366,16 @@ pdfjs-editor-stamp-add-image-button-label = Dodaj sliku
 pdfjs-editor-free-highlight-thickness-input = Debljina
 pdfjs-editor-free-highlight-thickness-title =
     .title = Promjeni debljinu pri isticanju drugih stavki osim teksta
+pdfjs-editor-add-signature-container =
+    .aria-label = Kontrole potpisa i spremljeni potpisi
 pdfjs-editor-signature-add-signature-button =
     .title = Dodaj novi potpis
 pdfjs-editor-signature-add-signature-button-label = Dodaj novi potpis
+# Used on the button to use an already saved signature.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-add-saved-signature-button =
+    .title = Spremljeni potpis: { $description }
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = Uređivač teksta
@@ -510,6 +532,7 @@ pdfjs-editor-undo-bar-message-highlight = Isticanje uklonjeno
 pdfjs-editor-undo-bar-message-freetext = Tekst uklonjen
 pdfjs-editor-undo-bar-message-ink = Crtež uklonjen
 pdfjs-editor-undo-bar-message-stamp = Slika uklonjena
+pdfjs-editor-undo-bar-message-signature = Potpis uklonjen
 # Variables:
 #   $count (Number) - the number of removed annotations.
 pdfjs-editor-undo-bar-message-multiple =
@@ -532,21 +555,64 @@ pdfjs-editor-add-signature-dialog-title = Dodaj potpis
 
 ## Tab names
 
+# Type is a verb (you can type your name as signature)
+pdfjs-editor-add-signature-type-button = Utipkaj
+    .title = Utipkaj
+# Draw is a verb (you can draw your signature)
+pdfjs-editor-add-signature-draw-button = Crtaj
+    .title = Crtaj
+pdfjs-editor-add-signature-image-button = Slika
+    .title = Slika
 
 ## Tab panels
 
+pdfjs-editor-add-signature-type-input =
+    .aria-label = Utipkaj svoj potpis
+    .placeholder = Utipkaj svoj potpis
+pdfjs-editor-add-signature-draw-placeholder = Nacrtaj svoj potpis
+pdfjs-editor-add-signature-draw-thickness-range-label = Debljina
+# Variables:
+#   $thickness (Number) - the thickness (in pixels) of the line used to draw a signature.
+pdfjs-editor-add-signature-draw-thickness-range =
+    .title = Debljina crtanja: { $thickness }
+pdfjs-editor-add-signature-image-placeholder = Povuci datoteku za prijenos ovamo
+pdfjs-editor-add-signature-image-browse-link =
+    { PLATFORM() ->
+        [macos] Ili odaberi slikovne datoteke
+       *[other] Ili odaberi slikovne datoteke
+    }
 
 ## Controls
 
+pdfjs-editor-add-signature-description-label = Opis (alternativni tekst)
+pdfjs-editor-add-signature-description-input =
+    .title = Opis (alternativni tekst)
+pdfjs-editor-add-signature-description-default-when-drawing = Potpis
+pdfjs-editor-add-signature-clear-button-label = Izbriši potpis
+pdfjs-editor-add-signature-clear-button =
+    .title = Izbriši potpis
+pdfjs-editor-add-signature-save-checkbox = Spremi potpis
+pdfjs-editor-add-signature-save-warning-message = Dosegnuto je ograničenje od 5 spremljenih potpisa. Za spremanje novih ukloni jedan potpis.
+pdfjs-editor-add-signature-image-upload-error-title = Nije moguće prenijeti sliku
+pdfjs-editor-add-signature-image-upload-error-description = Provjeri mrežnu vezu ili pokušaj s jednom drugom slikom.
+pdfjs-editor-add-signature-error-close-button = Zatvori
 
 ## Dialog buttons
 
+pdfjs-editor-add-signature-cancel-button = Odustani
+pdfjs-editor-add-signature-add-button = Dodaj
+pdfjs-editor-edit-signature-update-button = Aktualiziraj
 
 ## Main menu for adding/removing signatures
 
+pdfjs-editor-delete-signature-button1 =
+    .title = Ukloni spremljeni potpis
+pdfjs-editor-delete-signature-button-label1 = Ukloni spremljeni potpis
 
 ## Editor toolbar
 
+pdfjs-editor-add-signature-edit-button-label = Uredi opis
 
 ## Edit signature description dialog
 
+pdfjs-editor-edit-signature-dialog-title = Uredi opis
diff --git a/l10n/ia/viewer.ftl b/l10n/ia/viewer.ftl
index b9d5a21ea..798cd1ce2 100644
--- a/l10n/ia/viewer.ftl
+++ b/l10n/ia/viewer.ftl
@@ -332,7 +332,7 @@ pdfjs-editor-ink-editor =
 # Variables:
 #   $description (String) - a string describing/labeling the signature.
 pdfjs-editor-signature-editor1 =
-    .aria-description = Editor de signatura: { $description }
+    .aria-description = Editor de signaturas: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imagines
 
diff --git a/l10n/kk/viewer.ftl b/l10n/kk/viewer.ftl
index cd6f30b94..f5ff03598 100644
--- a/l10n/kk/viewer.ftl
+++ b/l10n/kk/viewer.ftl
@@ -551,6 +551,10 @@ pdfjs-editor-add-signature-image-button = Сурет
 
 ## Tab panels
 
+pdfjs-editor-add-signature-type-input =
+    .aria-label = Қолтаңбаңызды теріңіз
+    .placeholder = Қолтаңбаңызды теріңіз
+pdfjs-editor-add-signature-draw-placeholder = Қолтаңбаңызды сызыңыз
 pdfjs-editor-add-signature-draw-thickness-range-label = Қалыңдығы
 # Variables:
 #   $thickness (Number) - the thickness (in pixels) of the line used to draw a signature.
@@ -575,6 +579,7 @@ pdfjs-editor-add-signature-clear-button =
 pdfjs-editor-add-signature-save-checkbox = Қолтаңбаны сақтау
 pdfjs-editor-add-signature-save-warning-message = Сақталған 5 қолтаңбаның шегіне жеттіңіз. Көбірек сақтау үшін біреуін алып тастаңыз.
 pdfjs-editor-add-signature-image-upload-error-title = Суретті жүктеп жіберу мүмкін емес.
+pdfjs-editor-add-signature-image-upload-error-description = Желі байланысын тексеріңіз немесе басқа бейнені қолданып көріңіз.
 pdfjs-editor-add-signature-error-close-button = Жабу
 
 ## Dialog buttons
@@ -585,6 +590,9 @@ pdfjs-editor-edit-signature-update-button = Жаңарту
 
 ## Main menu for adding/removing signatures
 
+pdfjs-editor-delete-signature-button1 =
+    .title = Сақталған қолтаңбаны өшіру
+pdfjs-editor-delete-signature-button-label1 = Сақталған қолтаңбаны өшіру
 
 ## Editor toolbar
 
diff --git a/l10n/nb-NO/viewer.ftl b/l10n/nb-NO/viewer.ftl
index 38094574e..4f64b58ab 100644
--- a/l10n/nb-NO/viewer.ftl
+++ b/l10n/nb-NO/viewer.ftl
@@ -604,6 +604,7 @@ pdfjs-editor-edit-signature-update-button = Oppdater
 
 pdfjs-editor-delete-signature-button1 =
     .title = Fjern lagret signatur
+pdfjs-editor-delete-signature-button-label1 = Fjern lagret signatur
 
 ## Editor toolbar
 
diff --git a/l10n/zh-TW/viewer.ftl b/l10n/zh-TW/viewer.ftl
index 495b8d5ad..e6f62464d 100644
--- a/l10n/zh-TW/viewer.ftl
+++ b/l10n/zh-TW/viewer.ftl
@@ -337,7 +337,7 @@ pdfjs-editor-remove-freetext-button =
 pdfjs-editor-remove-stamp-button =
     .title = 移除圖片
 pdfjs-editor-remove-highlight-button =
-    .title = 移除強調範圍
+    .title = 移除選擇範圍的強調效果
 pdfjs-editor-remove-signature-button =
     .title = 移除簽章