diff --git a/l10n/be/viewer.ftl b/l10n/be/viewer.ftl
index a0de21cb3..74000d800 100644
--- a/l10n/be/viewer.ftl
+++ b/l10n/be/viewer.ftl
@@ -330,8 +330,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Рэдактар малюнкаў
-pdfjs-editor-signature-editor =
-    .aria-label = Рэдактар подпісаў
 pdfjs-editor-stamp-editor =
     .aria-label = Рэдактар выяў
 
diff --git a/l10n/cs/viewer.ftl b/l10n/cs/viewer.ftl
index 9f29ea247..3b782199c 100644
--- a/l10n/cs/viewer.ftl
+++ b/l10n/cs/viewer.ftl
@@ -332,8 +332,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Editor kresby
-pdfjs-editor-signature-editor =
-    .aria-label = Editor podpisu
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Editor podpisu: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor obrázků
 
diff --git a/l10n/cy/viewer.ftl b/l10n/cy/viewer.ftl
index 7e740b97a..e6b8186d1 100644
--- a/l10n/cy/viewer.ftl
+++ b/l10n/cy/viewer.ftl
@@ -336,8 +336,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Golygydd lluniadu
-pdfjs-editor-signature-editor =
-    .aria-label = Golygydd llofnodion
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Golygydd llofnod: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Golygydd delweddau
 
diff --git a/l10n/da/viewer.ftl b/l10n/da/viewer.ftl
index b028d9309..b95fae560 100644
--- a/l10n/da/viewer.ftl
+++ b/l10n/da/viewer.ftl
@@ -328,8 +328,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Redigering af tegninger
-pdfjs-editor-signature-editor =
-    .aria-label = Redigering af underskrifter
 pdfjs-editor-stamp-editor =
     .aria-label = Redigering af billeder
 
diff --git a/l10n/de/viewer.ftl b/l10n/de/viewer.ftl
index 739efdebf..367dd25e2 100644
--- a/l10n/de/viewer.ftl
+++ b/l10n/de/viewer.ftl
@@ -328,8 +328,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Zeichnungseditor
-pdfjs-editor-signature-editor =
-    .aria-label = Signatur-Editor
 pdfjs-editor-stamp-editor =
     .aria-label = Grafik-Editor
 
diff --git a/l10n/dsb/viewer.ftl b/l10n/dsb/viewer.ftl
index 7780f10db..5c1090056 100644
--- a/l10n/dsb/viewer.ftl
+++ b/l10n/dsb/viewer.ftl
@@ -332,8 +332,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Kresleński editor
-pdfjs-editor-signature-editor =
-    .aria-label = Editor signaturow
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Signaturowy editor: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Wobrazowy editor
 
diff --git a/l10n/el/viewer.ftl b/l10n/el/viewer.ftl
index 94ef946b9..9a7fa16ff 100644
--- a/l10n/el/viewer.ftl
+++ b/l10n/el/viewer.ftl
@@ -328,8 +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 = Επεξεργασία σχεδίου
-pdfjs-editor-signature-editor =
-    .aria-label = Επεξεργασία υπογραφής
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Επεξεργασία υπογραφής: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Επεξεργασία εικόνας
 
diff --git a/l10n/en-CA/viewer.ftl b/l10n/en-CA/viewer.ftl
index e6984c475..4ecab2979 100644
--- a/l10n/en-CA/viewer.ftl
+++ b/l10n/en-CA/viewer.ftl
@@ -328,8 +328,6 @@ 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
-pdfjs-editor-signature-editor =
-    .aria-label = Signature editor
 pdfjs-editor-stamp-editor =
     .aria-label = Image editor
 
diff --git a/l10n/en-GB/viewer.ftl b/l10n/en-GB/viewer.ftl
index aebac6c2c..2104c0232 100644
--- a/l10n/en-GB/viewer.ftl
+++ b/l10n/en-GB/viewer.ftl
@@ -328,8 +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
-pdfjs-editor-signature-editor =
-    .aria-label = Signature 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/es-AR/viewer.ftl b/l10n/es-AR/viewer.ftl
index 33e38b3ba..f714fd694 100644
--- a/l10n/es-AR/viewer.ftl
+++ b/l10n/es-AR/viewer.ftl
@@ -328,8 +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 = Editor de dibujos
-pdfjs-editor-signature-editor =
-    .aria-label = Editor de firmas
+# 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 firmas: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imágenes
 
diff --git a/l10n/es-CL/viewer.ftl b/l10n/es-CL/viewer.ftl
index 08865a812..b45af1e13 100644
--- a/l10n/es-CL/viewer.ftl
+++ b/l10n/es-CL/viewer.ftl
@@ -328,8 +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 = Editor de dibujos
-pdfjs-editor-signature-editor =
-    .aria-label = Editor de firmas
+# 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 firmas: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imágenes
 
diff --git a/l10n/es-ES/viewer.ftl b/l10n/es-ES/viewer.ftl
index 2d8a6fc6b..2f4418905 100644
--- a/l10n/es-ES/viewer.ftl
+++ b/l10n/es-ES/viewer.ftl
@@ -328,8 +328,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Editor de dibujos
-pdfjs-editor-signature-editor =
-    .aria-label = Editor de firmas
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imágenes
 
diff --git a/l10n/fi/viewer.ftl b/l10n/fi/viewer.ftl
index 869f80fad..8f7ff1392 100644
--- a/l10n/fi/viewer.ftl
+++ b/l10n/fi/viewer.ftl
@@ -328,8 +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 = Piirustusmuokkain
-pdfjs-editor-signature-editor =
-    .aria-label = Allekirjoitusmuokkain
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Allekirjoituksen muokkain: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Kuvamuokkain
 
diff --git a/l10n/fr/viewer.ftl b/l10n/fr/viewer.ftl
index b976828f6..d31b7107b 100644
--- a/l10n/fr/viewer.ftl
+++ b/l10n/fr/viewer.ftl
@@ -324,8 +324,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Éditeur de dessins
-pdfjs-editor-signature-editor =
-    .aria-label = Éditeur de signatures
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Éditeur de signature : { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Éditeur d’images
 
diff --git a/l10n/fur/viewer.ftl b/l10n/fur/viewer.ftl
index 40f3d9e04..3281091bb 100644
--- a/l10n/fur/viewer.ftl
+++ b/l10n/fur/viewer.ftl
@@ -328,8 +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 = Modifiche dissens
-pdfjs-editor-signature-editor =
-    .aria-label = Modifiche firmis
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Editôr firmis: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Modifiche imagjins
 
diff --git a/l10n/fy-NL/viewer.ftl b/l10n/fy-NL/viewer.ftl
index cb2fc129f..f5af07d7d 100644
--- a/l10n/fy-NL/viewer.ftl
+++ b/l10n/fy-NL/viewer.ftl
@@ -328,8 +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 = Tekeningbewurker
-pdfjs-editor-signature-editor =
-    .aria-label = Hantekeningbewurker
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Undertekeningsbewurker: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Ofbyldingsbewurker
 
diff --git a/l10n/gn/viewer.ftl b/l10n/gn/viewer.ftl
index d7cbdc9a5..907d2ecb7 100644
--- a/l10n/gn/viewer.ftl
+++ b/l10n/gn/viewer.ftl
@@ -328,8 +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 = Ta’ãnga’apo moheñoiha
-pdfjs-editor-signature-editor =
-    .aria-label = Teraguapy moheñoiha
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Teraguapy mbosako’iha: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Ta’ãnga mbosako’iha
 
diff --git a/l10n/he/viewer.ftl b/l10n/he/viewer.ftl
index 777a07f31..1d9cd992e 100644
--- a/l10n/he/viewer.ftl
+++ b/l10n/he/viewer.ftl
@@ -328,8 +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 = עורך ציורים
-pdfjs-editor-signature-editor =
-    .aria-label = עורך חתימות
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = עורך החתימות: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = עורך תמונות
 
diff --git a/l10n/hsb/viewer.ftl b/l10n/hsb/viewer.ftl
index e249db42a..dcdb4b336 100644
--- a/l10n/hsb/viewer.ftl
+++ b/l10n/hsb/viewer.ftl
@@ -332,8 +332,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Rysowanski editor
-pdfjs-editor-signature-editor =
-    .aria-label = Editor signaturow
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Signaturowy editor: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Wobrazowy editor
 
diff --git a/l10n/hu/viewer.ftl b/l10n/hu/viewer.ftl
index 57359f493..b7b8750e0 100644
--- a/l10n/hu/viewer.ftl
+++ b/l10n/hu/viewer.ftl
@@ -328,8 +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 = Rajzszerkesztő
-pdfjs-editor-signature-editor =
-    .aria-label = Aláírás-szerkesztő
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Aláírás-szerkesztő: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Képszerkesztő
 
diff --git a/l10n/hy-AM/viewer.ftl b/l10n/hy-AM/viewer.ftl
index 10375ab22..a848f1a94 100644
--- a/l10n/hy-AM/viewer.ftl
+++ b/l10n/hy-AM/viewer.ftl
@@ -281,6 +281,7 @@ pdfjs-editor-highlight-show-all-button =
 ## 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.
 
+pdfjs-editor-new-alt-text-not-now-button = Ոչ հիմա
 
 ## Image alt-text settings
 
diff --git a/l10n/ia/viewer.ftl b/l10n/ia/viewer.ftl
index d89558ac3..31f47bc69 100644
--- a/l10n/ia/viewer.ftl
+++ b/l10n/ia/viewer.ftl
@@ -328,8 +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 = Editor de designos
-pdfjs-editor-signature-editor =
-    .aria-label = Editor de signatura
+# 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 signatura: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imagines
 
diff --git a/l10n/id/viewer.ftl b/l10n/id/viewer.ftl
index ae55ceb4f..50abaabe7 100644
--- a/l10n/id/viewer.ftl
+++ b/l10n/id/viewer.ftl
@@ -320,8 +320,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Editor gambar
-pdfjs-editor-signature-editor =
-    .aria-label = Editor tanda tangan
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Editor tanda tangan: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor gambar
 
diff --git a/l10n/it/viewer.ftl b/l10n/it/viewer.ftl
index cc41d5d7f..f7c2d67ae 100644
--- a/l10n/it/viewer.ftl
+++ b/l10n/it/viewer.ftl
@@ -616,3 +616,4 @@ pdfjs-editor-add-signature-edit-button-label = Modifica descrizione
 ## Edit signature description dialog
 
 pdfjs-editor-edit-signature-dialog-title = Modifica descrizione
+
diff --git a/l10n/ja/viewer.ftl b/l10n/ja/viewer.ftl
index 42eb3030a..33439abc9 100644
--- a/l10n/ja/viewer.ftl
+++ b/l10n/ja/viewer.ftl
@@ -312,6 +312,22 @@ pdfjs-editor-signature-button =
     .title = 署名を追加します
 pdfjs-editor-signature-button-label = 署名を追加
 
+## Default editor aria labels
+
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = 強調エディター
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = 描画エディター
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = 署名エディター: { $description }
+pdfjs-editor-stamp-editor =
+    .aria-label = 画像エディター
+
 ## Remove button for the various kind of editor.
 
 pdfjs-editor-remove-ink-button =
@@ -340,9 +356,16 @@ pdfjs-editor-stamp-add-image-button-label = 画像を追加
 pdfjs-editor-free-highlight-thickness-input = 太さ
 pdfjs-editor-free-highlight-thickness-title =
     .title = テキスト以外のアイテムを強調する時の太さを変更します
+pdfjs-editor-add-signature-container =
+    .aria-label = 署名コントロールと保存された署名
 pdfjs-editor-signature-add-signature-button =
     .title = 新しい署名を追加します
 pdfjs-editor-signature-add-signature-button-label = 新しい署名を追加
+# 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 = 保存された署名: { $description }
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = フリーテキスト注釈エディター
@@ -453,7 +476,6 @@ pdfjs-editor-new-alt-text-error-close-button = 閉じる
 # Variables:
 #   $totalSize (Number) - the total size (in MB) of the AI model.
 #   $downloadedSize (Number) - the downloaded size (in MB) of the AI model.
-#   $percent (Number) - the percentage of the downloaded size.
 pdfjs-editor-new-alt-text-ai-model-downloading-progress = 代替テキスト AI モデルをダウンロードしています ({ $downloadedSize } / { $totalSize } MB)
     .aria-valuetext = 代替テキスト AI モデルをダウンロードしています ({ $downloadedSize } / { $totalSize } MB)
 # This is a button that users can click to edit the alt text they have already added.
@@ -571,6 +593,9 @@ pdfjs-editor-edit-signature-update-button = 更新
 pdfjs-editor-delete-signature-button =
     .title = 署名を削除します
 pdfjs-editor-delete-signature-button-label = 署名を削除
+pdfjs-editor-delete-signature-button1 =
+    .title = 保存された署名を削除します
+pdfjs-editor-delete-signature-button-label1 = 保存された署名を削除
 
 ## Editor toolbar
 
diff --git a/l10n/ka/viewer.ftl b/l10n/ka/viewer.ftl
index d59adc0cd..0a1de208e 100644
--- a/l10n/ka/viewer.ftl
+++ b/l10n/ka/viewer.ftl
@@ -328,8 +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 = ნახაზის ჩასწორება
-pdfjs-editor-signature-editor =
-    .aria-label = ხელმოწერის ჩასწორება
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = ხელმოწერის ჩასწორება: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = სურათის ჩასწორება
 
diff --git a/l10n/ko/viewer.ftl b/l10n/ko/viewer.ftl
index 5f746d0f1..51290c881 100644
--- a/l10n/ko/viewer.ftl
+++ b/l10n/ko/viewer.ftl
@@ -320,8 +320,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = 그리기 편집기
-pdfjs-editor-signature-editor =
-    .aria-label = 서명 편집기
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = 서명 편집기: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = 이미지 편집기
 
@@ -557,7 +560,7 @@ pdfjs-editor-add-signature-draw-thickness-range-label = 두께
 #   $thickness (Number) - the thickness (in pixels) of the line used to draw a signature.
 pdfjs-editor-add-signature-draw-thickness-range =
     .title = 그리기 두께: { $thickness }
-pdfjs-editor-add-signature-image-placeholder = 업로드할 파일을 여기로 끌어서 놓기
+pdfjs-editor-add-signature-image-placeholder = 이미지 파일을 여기에 끌어서 놓으세요
 pdfjs-editor-add-signature-image-browse-link =
     { PLATFORM() ->
         [macos] 또는 이미지 파일 찾아보기
diff --git a/l10n/nl/viewer.ftl b/l10n/nl/viewer.ftl
index ddb961efb..e4254d32f 100644
--- a/l10n/nl/viewer.ftl
+++ b/l10n/nl/viewer.ftl
@@ -328,8 +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 = Tekeningbewerker
-pdfjs-editor-signature-editor =
-    .aria-label = Handtekeningbewerker
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Ondertekening-editor: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Afbeeldingsbewerker
 
diff --git a/l10n/nn-NO/viewer.ftl b/l10n/nn-NO/viewer.ftl
index d30010d50..5cb692c25 100644
--- a/l10n/nn-NO/viewer.ftl
+++ b/l10n/nn-NO/viewer.ftl
@@ -325,8 +325,6 @@ pdfjs-editor-signature-button-label = Legg til signatur
 # “Highlight” is a noun, the string is used on the editor for highlights.
 pdfjs-editor-highlight-editor =
     .aria-label = Markeringsredigerar
-pdfjs-editor-signature-editor =
-    .aria-label = Signatur-redigerar
 pdfjs-editor-stamp-editor =
     .aria-label = Bildredigerar
 
diff --git a/l10n/pa-IN/viewer.ftl b/l10n/pa-IN/viewer.ftl
index 9abd3c470..e59ad1147 100644
--- a/l10n/pa-IN/viewer.ftl
+++ b/l10n/pa-IN/viewer.ftl
@@ -328,8 +328,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = ਡਰਾਇੰਗ ਸੰਪਾਦਕ
-pdfjs-editor-signature-editor =
-    .aria-label = ਦਸਤਖ਼ਤ ਸੰਪਾਦਕ
 pdfjs-editor-stamp-editor =
     .aria-label = ਚਿੱਤਰ ਸੰਪਾਦਕ
 
diff --git a/l10n/pl/viewer.ftl b/l10n/pl/viewer.ftl
index 358443686..bc5cc2f56 100644
--- a/l10n/pl/viewer.ftl
+++ b/l10n/pl/viewer.ftl
@@ -330,8 +330,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Edytor rysunku
-pdfjs-editor-signature-editor =
-    .aria-label = Edytor podpisu
 pdfjs-editor-stamp-editor =
     .aria-label = Edytor obrazu
 
diff --git a/l10n/pt-BR/viewer.ftl b/l10n/pt-BR/viewer.ftl
index 0ada76c9d..0c06a7428 100644
--- a/l10n/pt-BR/viewer.ftl
+++ b/l10n/pt-BR/viewer.ftl
@@ -328,8 +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 = Editor de desenho
-pdfjs-editor-signature-editor =
-    .aria-label = Editor de assinatura
+# 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 assinatura: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imagem
 
diff --git a/l10n/pt-PT/viewer.ftl b/l10n/pt-PT/viewer.ftl
index 4de277f80..2f6e5fc12 100644
--- a/l10n/pt-PT/viewer.ftl
+++ b/l10n/pt-PT/viewer.ftl
@@ -328,8 +328,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Editor de desenho
-pdfjs-editor-signature-editor =
-    .aria-label = Editor de assinatura
 pdfjs-editor-stamp-editor =
     .aria-label = Editor de imagem
 
diff --git a/l10n/rm/viewer.ftl b/l10n/rm/viewer.ftl
index 6613a5140..807fd6fa8 100644
--- a/l10n/rm/viewer.ftl
+++ b/l10n/rm/viewer.ftl
@@ -328,8 +328,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Editur per dissegnar
-pdfjs-editor-signature-editor =
-    .aria-label = Editur per signaturas
 pdfjs-editor-stamp-editor =
     .aria-label = Editur per maletgs
 
diff --git a/l10n/ro/viewer.ftl b/l10n/ro/viewer.ftl
index 04bdd9a0e..1dd406c2b 100644
--- a/l10n/ro/viewer.ftl
+++ b/l10n/ro/viewer.ftl
@@ -146,7 +146,7 @@ pdfjs-print-progress-message = Se pregătește documentul pentru tipărire…
 # Variables:
 #   $progress (Number) - percent value
 pdfjs-print-progress-percent = { $progress }%
-pdfjs-print-progress-close-button = Renunță
+pdfjs-print-progress-close-button = Anulează
 pdfjs-printing-not-supported = Avertisment: Tipărirea nu este suportată în totalitate de acest browser.
 pdfjs-printing-not-ready = Avertisment: PDF-ul nu este încărcat complet pentru tipărire.
 
@@ -237,7 +237,7 @@ pdfjs-text-annotation-type =
 pdfjs-password-label = Introdu parola pentru a deschide acest fișier PDF.
 pdfjs-password-invalid = Parolă nevalidă. Te rugăm să încerci din nou.
 pdfjs-password-ok-button = OK
-pdfjs-password-cancel-button = Renunță
+pdfjs-password-cancel-button = Anulează
 pdfjs-web-fonts-disabled = Fonturile web sunt dezactivate: nu se pot folosi fonturile PDF încorporate.
 
 ## Editing
@@ -254,6 +254,7 @@ pdfjs-web-fonts-disabled = Fonturile web sunt dezactivate: nu se pot folosi font
 
 ## Alt-text dialog
 
+pdfjs-editor-alt-text-cancel-button = Anulează
 
 ## Editor resizers
 ## This is used in an aria label to help to understand the role of the resizer.
diff --git a/l10n/ru/viewer.ftl b/l10n/ru/viewer.ftl
index 85306dadf..0c926d952 100644
--- a/l10n/ru/viewer.ftl
+++ b/l10n/ru/viewer.ftl
@@ -330,8 +330,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Редактор изображений
-pdfjs-editor-signature-editor =
-    .aria-label = Редактор подписей
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Редактор подписи: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Редактор изображений
 
diff --git a/l10n/sc/viewer.ftl b/l10n/sc/viewer.ftl
index f3618e849..9378a4f8c 100644
--- a/l10n/sc/viewer.ftl
+++ b/l10n/sc/viewer.ftl
@@ -152,7 +152,7 @@ pdfjs-print-progress-message = Aparitzende s'imprenta de su documentu…
 # Variables:
 #   $progress (Number) - percent value
 pdfjs-print-progress-percent = { $progress }%
-pdfjs-print-progress-close-button = Cantzella
+pdfjs-print-progress-close-button = Annulla
 pdfjs-printing-not-supported = Atentzione: s'imprenta no est funtzionende de su totu in custu navigadore.
 pdfjs-printing-not-ready = Atentzione: su PDF no est istadu carrigadu de su totu pro s'imprenta.
 
@@ -246,7 +246,7 @@ pdfjs-annotation-date-string = { $date }, { $time }
 pdfjs-password-label = Inserta sa crae pro abèrrere custu archìviu PDF.
 pdfjs-password-invalid = Sa crae no est curreta. Torra a nche proare.
 pdfjs-password-ok-button = Andat bene
-pdfjs-password-cancel-button = Cantzella
+pdfjs-password-cancel-button = Annulla
 pdfjs-web-fonts-disabled = Is tipografias web sunt disativadas: is tipografias incrustadas a su PDF non podent èssere impreadas.
 
 ## Editing
diff --git a/l10n/sk/viewer.ftl b/l10n/sk/viewer.ftl
index e3712ec10..54b57ab43 100644
--- a/l10n/sk/viewer.ftl
+++ b/l10n/sk/viewer.ftl
@@ -332,8 +332,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Editor kreslenia
-pdfjs-editor-signature-editor =
-    .aria-label = Editor podpisov
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Editor podpisu: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Editor obrázkov
 
diff --git a/l10n/sl/viewer.ftl b/l10n/sl/viewer.ftl
index e8d091280..ba97c94c3 100644
--- a/l10n/sl/viewer.ftl
+++ b/l10n/sl/viewer.ftl
@@ -332,8 +332,6 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Urejevalnik risb
-pdfjs-editor-signature-editor =
-    .aria-label = Urejevalnik podpisov
 pdfjs-editor-stamp-editor =
     .aria-label = Urejevalnik slik
 
diff --git a/l10n/sq/viewer.ftl b/l10n/sq/viewer.ftl
index 5556e307c..9510fe874 100644
--- a/l10n/sq/viewer.ftl
+++ b/l10n/sq/viewer.ftl
@@ -313,6 +313,14 @@ pdfjs-editor-signature-button-label = Shtoni nënshkrim
 
 ## Default editor aria labels
 
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = Përpunues theksimesh
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = Përpunues vizatimesh
+pdfjs-editor-stamp-editor =
+    .aria-label = Përpunues figurash
 
 ## Remove button for the various kind of editor.
 
@@ -342,9 +350,16 @@ pdfjs-editor-stamp-add-image-button-label = Shtoni figurë
 pdfjs-editor-free-highlight-thickness-input = Trashësi
 pdfjs-editor-free-highlight-thickness-title =
     .title = Ndryshoni trashësinë kur theksoni objekte tjetër nga tekst
+pdfjs-editor-add-signature-container =
+    .aria-label = Kontrolle nënshkrimesh dhe nënshkrime të ruajtur
 pdfjs-editor-signature-add-signature-button =
     .title = Shtoni nënshkrim të ri
 pdfjs-editor-signature-add-signature-button-label = Shtoni nënshkrim të ri
+# 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 = Nënshkrim i ruajtur: { $description }
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = Përpunues Tekstesh
@@ -576,6 +591,9 @@ pdfjs-editor-edit-signature-update-button = Përditësoje
 pdfjs-editor-delete-signature-button =
     .title = Hiqe nënshkrimin
 pdfjs-editor-delete-signature-button-label = Hiqe nënshkrimin
+pdfjs-editor-delete-signature-button1 =
+    .title = Hiqe nënshkrimin e ruajtur
+pdfjs-editor-delete-signature-button-label1 = Hiqe nënshkrimin e ruajtur
 
 ## Editor toolbar
 
diff --git a/l10n/sv-SE/viewer.ftl b/l10n/sv-SE/viewer.ftl
index 353829c2e..ca02fbe4d 100644
--- a/l10n/sv-SE/viewer.ftl
+++ b/l10n/sv-SE/viewer.ftl
@@ -328,8 +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 = Ritredigerare
-pdfjs-editor-signature-editor =
-    .aria-label = Signaturredigerare
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Signaturredigerare: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Bildredigerare
 
diff --git a/l10n/tg/viewer.ftl b/l10n/tg/viewer.ftl
index dfb1315a7..5ed668bb1 100644
--- a/l10n/tg/viewer.ftl
+++ b/l10n/tg/viewer.ftl
@@ -328,8 +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 = Муҳаррири расмкашӣ
-pdfjs-editor-signature-editor =
-    .aria-label = Муҳаррири имзо
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Муҳаррири имзо: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Муҳаррири тасвир
 
diff --git a/l10n/tr/viewer.ftl b/l10n/tr/viewer.ftl
index 8eeba402c..1c31aaf9e 100644
--- a/l10n/tr/viewer.ftl
+++ b/l10n/tr/viewer.ftl
@@ -328,8 +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 = Çizim düzenleyici
-pdfjs-editor-signature-editor =
-    .aria-label = İmza düzenleyici
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = İmza düzenleyici: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Resim düzenleyici
 
diff --git a/l10n/uk/viewer.ftl b/l10n/uk/viewer.ftl
index de1549d3b..0cd31076e 100644
--- a/l10n/uk/viewer.ftl
+++ b/l10n/uk/viewer.ftl
@@ -324,6 +324,14 @@ pdfjs-editor-signature-button-label = Додати підпис
 
 ## Default editor aria labels
 
+# “Highlight” is a noun, the string is used on the editor for highlights.
+pdfjs-editor-highlight-editor =
+    .aria-label = Редактор підсвічень
+# “Drawing” is a noun, the string is used on the editor for drawings.
+pdfjs-editor-ink-editor =
+    .aria-label = Редактор малюнків
+pdfjs-editor-stamp-editor =
+    .aria-label = Редактор зображень
 
 ## Remove button for the various kind of editor.
 
@@ -353,9 +361,16 @@ pdfjs-editor-stamp-add-image-button-label = Додати зображення
 pdfjs-editor-free-highlight-thickness-input = Товщина
 pdfjs-editor-free-highlight-thickness-title =
     .title = Змінюйте товщину під час підсвічення елементів, крім тексту
+pdfjs-editor-add-signature-container =
+    .aria-label = Елементи керування підписами та збережені підписи
 pdfjs-editor-signature-add-signature-button =
     .title = Додати новий підпис
 pdfjs-editor-signature-add-signature-button-label = Додати новий підпис
+# 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 = Збережений підпис: { $description }
 # .default-content is used as a placeholder in an empty text editor.
 pdfjs-free-text2 =
     .aria-label = Текстовий редактор
@@ -588,6 +603,9 @@ pdfjs-editor-edit-signature-update-button = Оновити
 pdfjs-editor-delete-signature-button =
     .title = Вилучити підпис
 pdfjs-editor-delete-signature-button-label = Вилучити підпис
+pdfjs-editor-delete-signature-button1 =
+    .title = Видалити збережений підпис
+pdfjs-editor-delete-signature-button-label1 = Видалити збережений підпис
 
 ## Editor toolbar
 
diff --git a/l10n/vi/viewer.ftl b/l10n/vi/viewer.ftl
index ddfd6ec66..359f7d572 100644
--- a/l10n/vi/viewer.ftl
+++ b/l10n/vi/viewer.ftl
@@ -320,8 +320,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = Trình chỉnh sửa bản vẽ
-pdfjs-editor-signature-editor =
-    .aria-label = Trình chỉnh sửa chữ ký
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = Trình chỉnh sửa chữ ký: { $description }
 pdfjs-editor-stamp-editor =
     .aria-label = Trình chỉnh sửa hình ảnh
 
diff --git a/l10n/zh-CN/viewer.ftl b/l10n/zh-CN/viewer.ftl
index a683c0283..cc67c6f5b 100644
--- a/l10n/zh-CN/viewer.ftl
+++ b/l10n/zh-CN/viewer.ftl
@@ -320,8 +320,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = 绘图编辑器
-pdfjs-editor-signature-editor =
-    .aria-label = 签名编辑器
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = 签名编辑器：{ $description }
 pdfjs-editor-stamp-editor =
     .aria-label = 图像编辑器
 
diff --git a/l10n/zh-TW/viewer.ftl b/l10n/zh-TW/viewer.ftl
index 657791103..4f7ce6d6f 100644
--- a/l10n/zh-TW/viewer.ftl
+++ b/l10n/zh-TW/viewer.ftl
@@ -320,8 +320,11 @@ pdfjs-editor-highlight-editor =
 # “Drawing” is a noun, the string is used on the editor for drawings.
 pdfjs-editor-ink-editor =
     .aria-label = 繪圖編輯器
-pdfjs-editor-signature-editor =
-    .aria-label = 簽章編輯器
+# Used when a signature editor is selected/hovered.
+# Variables:
+#   $description (String) - a string describing/labeling the signature.
+pdfjs-editor-signature-editor1 =
+    .aria-description = 簽章編輯器：{ $description }
 pdfjs-editor-stamp-editor =
     .aria-label = 圖片編輯器