diff --git a/chrome/locale/af-ZA/zotero/zotero.dtd b/chrome/locale/af-ZA/zotero/zotero.dtd
index dc7fcfe16e..9572a10013 100644
--- a/chrome/locale/af-ZA/zotero/zotero.dtd
+++ b/chrome/locale/af-ZA/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/ar/zotero/zotero.dtd b/chrome/locale/ar/zotero/zotero.dtd
index 32a3e8f20e..0d6a8d39ac 100644
--- a/chrome/locale/ar/zotero/zotero.dtd
+++ b/chrome/locale/ar/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/bg-BG/zotero/zotero.dtd b/chrome/locale/bg-BG/zotero/zotero.dtd
index 43028bc0d8..a3868d5891 100644
--- a/chrome/locale/bg-BG/zotero/zotero.dtd
+++ b/chrome/locale/bg-BG/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/br/zotero/zotero.dtd b/chrome/locale/br/zotero/zotero.dtd
index 9cd0fbbf2e..2c8b52b0f9 100644
--- a/chrome/locale/br/zotero/zotero.dtd
+++ b/chrome/locale/br/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/ca-AD/zotero/zotero.dtd b/chrome/locale/ca-AD/zotero/zotero.dtd
index b562ddc2e2..7334f76355 100644
--- a/chrome/locale/ca-AD/zotero/zotero.dtd
+++ b/chrome/locale/ca-AD/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Divideix verticalment">
 <!ENTITY zotero.pdfReader.splitHorizontally "Divideix horitzontalment">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importa anotacions…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/cs-CZ/zotero/zotero.dtd b/chrome/locale/cs-CZ/zotero/zotero.dtd
index 225819157f..647307f2c3 100644
--- a/chrome/locale/cs-CZ/zotero/zotero.dtd
+++ b/chrome/locale/cs-CZ/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/da-DK/zotero/zotero.dtd b/chrome/locale/da-DK/zotero/zotero.dtd
index 9d733d6386..9b559f838c 100644
--- a/chrome/locale/da-DK/zotero/zotero.dtd
+++ b/chrome/locale/da-DK/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/de/zotero/zotero.dtd b/chrome/locale/de/zotero/zotero.dtd
index 84f4be787f..56aff7b070 100644
--- a/chrome/locale/de/zotero/zotero.dtd
+++ b/chrome/locale/de/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Vertikal aufteilen">
 <!ENTITY zotero.pdfReader.splitHorizontally "Horizontal aufteilen">
 <!ENTITY zotero.pdfReader.transferFromPDF "Anmerkungen importieren…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/el-GR/zotero/zotero.dtd b/chrome/locale/el-GR/zotero/zotero.dtd
index 2c57f16cae..b497239a93 100644
--- a/chrome/locale/el-GR/zotero/zotero.dtd
+++ b/chrome/locale/el-GR/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/en-GB/zotero/zotero.dtd b/chrome/locale/en-GB/zotero/zotero.dtd
index a6916f3d0c..beadcda865 100644
--- a/chrome/locale/en-GB/zotero/zotero.dtd
+++ b/chrome/locale/en-GB/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/es-ES/zotero/zotero.dtd b/chrome/locale/es-ES/zotero/zotero.dtd
index 351c47bcb3..1ad7bb7201 100644
--- a/chrome/locale/es-ES/zotero/zotero.dtd
+++ b/chrome/locale/es-ES/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Dividir verticalmente">
 <!ENTITY zotero.pdfReader.splitHorizontally "Dividir horizontalmente">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importar anotaciones...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/et-EE/zotero/zotero.dtd b/chrome/locale/et-EE/zotero/zotero.dtd
index 31e3e3a6d4..a1479a180e 100644
--- a/chrome/locale/et-EE/zotero/zotero.dtd
+++ b/chrome/locale/et-EE/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/eu-ES/zotero/zotero.dtd b/chrome/locale/eu-ES/zotero/zotero.dtd
index 63b65da11b..83eb902190 100644
--- a/chrome/locale/eu-ES/zotero/zotero.dtd
+++ b/chrome/locale/eu-ES/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Oharpenak inportatu">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/fa/zotero/zotero.dtd b/chrome/locale/fa/zotero/zotero.dtd
index 481faa09ab..ce287d1895 100644
--- a/chrome/locale/fa/zotero/zotero.dtd
+++ b/chrome/locale/fa/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/fi-FI/zotero/zotero.dtd b/chrome/locale/fi-FI/zotero/zotero.dtd
index 3ea2ef0ccc..6fd1c50298 100644
--- a/chrome/locale/fi-FI/zotero/zotero.dtd
+++ b/chrome/locale/fi-FI/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Jaa pystysuunnassa">
 <!ENTITY zotero.pdfReader.splitHorizontally "Jaa vaakasuunnassa">
 <!ENTITY zotero.pdfReader.transferFromPDF "Tuo huomautukset...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/fr-FR/zotero/zotero.dtd b/chrome/locale/fr-FR/zotero/zotero.dtd
index 9a2d633d1f..3d6f06fd1f 100644
--- a/chrome/locale/fr-FR/zotero/zotero.dtd
+++ b/chrome/locale/fr-FR/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Diviser Verticalement">
 <!ENTITY zotero.pdfReader.splitHorizontally "Diviser Horizontalement">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importer des annotations...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/gl-ES/zotero/zotero.dtd b/chrome/locale/gl-ES/zotero/zotero.dtd
index b12439795f..27c570f4e7 100644
--- a/chrome/locale/gl-ES/zotero/zotero.dtd
+++ b/chrome/locale/gl-ES/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importar anotacións...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/he-IL/zotero/zotero.dtd b/chrome/locale/he-IL/zotero/zotero.dtd
index 4477c40b57..63bc3f48a5 100644
--- a/chrome/locale/he-IL/zotero/zotero.dtd
+++ b/chrome/locale/he-IL/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "ייבוא הסברים…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/hr-HR/zotero/zotero.dtd b/chrome/locale/hr-HR/zotero/zotero.dtd
index 2502a71c11..8d721402c0 100644
--- a/chrome/locale/hr-HR/zotero/zotero.dtd
+++ b/chrome/locale/hr-HR/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/hu-HU/zotero/zotero.dtd b/chrome/locale/hu-HU/zotero/zotero.dtd
index 4573e83c08..12508fff8f 100644
--- a/chrome/locale/hu-HU/zotero/zotero.dtd
+++ b/chrome/locale/hu-HU/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Függőlegesen osztva">
 <!ENTITY zotero.pdfReader.splitHorizontally "Vízszintesen osztva">
 <!ENTITY zotero.pdfReader.transferFromPDF "Jegyzetek importálása…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/id-ID/zotero/zotero.dtd b/chrome/locale/id-ID/zotero/zotero.dtd
index 79d20aedf7..95f2693506 100644
--- a/chrome/locale/id-ID/zotero/zotero.dtd
+++ b/chrome/locale/id-ID/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/is-IS/zotero/zotero.dtd b/chrome/locale/is-IS/zotero/zotero.dtd
index f0a24aa465..be8cb31c6a 100644
--- a/chrome/locale/is-IS/zotero/zotero.dtd
+++ b/chrome/locale/is-IS/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/it-IT/zotero/zotero.dtd b/chrome/locale/it-IT/zotero/zotero.dtd
index 2a911c93bc..64aad8b81a 100644
--- a/chrome/locale/it-IT/zotero/zotero.dtd
+++ b/chrome/locale/it-IT/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Dividi verticalmente">
 <!ENTITY zotero.pdfReader.splitHorizontally "Dividi orizzontalmente">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importa le annotazioni...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/ja-JP/zotero/zotero.dtd b/chrome/locale/ja-JP/zotero/zotero.dtd
index f6b761fc60..60bfd7ff2c 100644
--- a/chrome/locale/ja-JP/zotero/zotero.dtd
+++ b/chrome/locale/ja-JP/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "注釈のインポート…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/km/zotero/zotero.dtd b/chrome/locale/km/zotero/zotero.dtd
index 0aaccff0da..3f3988efb4 100644
--- a/chrome/locale/km/zotero/zotero.dtd
+++ b/chrome/locale/km/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/ko-KR/zotero/zotero.dtd b/chrome/locale/ko-KR/zotero/zotero.dtd
index e3e259270f..7e5820f826 100644
--- a/chrome/locale/ko-KR/zotero/zotero.dtd
+++ b/chrome/locale/ko-KR/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/lt-LT/zotero/zotero.dtd b/chrome/locale/lt-LT/zotero/zotero.dtd
index 7aec7aeb13..783cc45210 100644
--- a/chrome/locale/lt-LT/zotero/zotero.dtd
+++ b/chrome/locale/lt-LT/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/mn-MN/zotero/zotero.dtd b/chrome/locale/mn-MN/zotero/zotero.dtd
index bcf4b85e1f..4871901b15 100644
--- a/chrome/locale/mn-MN/zotero/zotero.dtd
+++ b/chrome/locale/mn-MN/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/nb-NO/zotero/zotero.dtd b/chrome/locale/nb-NO/zotero/zotero.dtd
index 1d45248839..50f724df1d 100644
--- a/chrome/locale/nb-NO/zotero/zotero.dtd
+++ b/chrome/locale/nb-NO/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Del vertikalt">
 <!ENTITY zotero.pdfReader.splitHorizontally "Del horisontalt">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importer merknader…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/nl-NL/zotero/zotero.dtd b/chrome/locale/nl-NL/zotero/zotero.dtd
index 01bfd91ac3..a1d9b61ab0 100644
--- a/chrome/locale/nl-NL/zotero/zotero.dtd
+++ b/chrome/locale/nl-NL/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/nn-NO/zotero/zotero.dtd b/chrome/locale/nn-NO/zotero/zotero.dtd
index 748095f8b9..398834c158 100644
--- a/chrome/locale/nn-NO/zotero/zotero.dtd
+++ b/chrome/locale/nn-NO/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/pl-PL/zotero/zotero.dtd b/chrome/locale/pl-PL/zotero/zotero.dtd
index 41fa14c746..00694b096f 100644
--- a/chrome/locale/pl-PL/zotero/zotero.dtd
+++ b/chrome/locale/pl-PL/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Podziel pionowo">
 <!ENTITY zotero.pdfReader.splitHorizontally "Podziel poziomo">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importuj adnotacje...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/pt-BR/zotero/zotero.dtd b/chrome/locale/pt-BR/zotero/zotero.dtd
index 2c0ca8eed7..b9a62d0fb3 100644
--- a/chrome/locale/pt-BR/zotero/zotero.dtd
+++ b/chrome/locale/pt-BR/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Dividir verticalmente">
 <!ENTITY zotero.pdfReader.splitHorizontally "Dividir horizontalmente">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importar anotações...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/pt-PT/zotero/zotero.dtd b/chrome/locale/pt-PT/zotero/zotero.dtd
index 40c9100e8b..ec91889659 100644
--- a/chrome/locale/pt-PT/zotero/zotero.dtd
+++ b/chrome/locale/pt-PT/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Dividir verticalmente">
 <!ENTITY zotero.pdfReader.splitHorizontally "Dividir horizontalmente">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importar Anotações...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/ro-RO/zotero/zotero.dtd b/chrome/locale/ro-RO/zotero/zotero.dtd
index 6297ef1960..a54fb8c707 100644
--- a/chrome/locale/ro-RO/zotero/zotero.dtd
+++ b/chrome/locale/ro-RO/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/ru-RU/zotero/zotero.dtd b/chrome/locale/ru-RU/zotero/zotero.dtd
index 8485485ca0..6a7a9d7c34 100644
--- a/chrome/locale/ru-RU/zotero/zotero.dtd
+++ b/chrome/locale/ru-RU/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Разделить вертикально">
 <!ENTITY zotero.pdfReader.splitHorizontally "Разделить горизонтально">
 <!ENTITY zotero.pdfReader.transferFromPDF "Импортировать аннотации…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/sk-SK/zotero/zotero.dtd b/chrome/locale/sk-SK/zotero/zotero.dtd
index a0ca03917f..40bff7166c 100644
--- a/chrome/locale/sk-SK/zotero/zotero.dtd
+++ b/chrome/locale/sk-SK/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Importovať anotácie...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/sl-SI/zotero/zotero.dtd b/chrome/locale/sl-SI/zotero/zotero.dtd
index 85c7b620b7..cdfd1ad664 100644
--- a/chrome/locale/sl-SI/zotero/zotero.dtd
+++ b/chrome/locale/sl-SI/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Razdeli navpično">
 <!ENTITY zotero.pdfReader.splitHorizontally "Razdeli vodoravno">
 <!ENTITY zotero.pdfReader.transferFromPDF "Uvozi zaznamke ...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/sr-RS/zotero/zotero.dtd b/chrome/locale/sr-RS/zotero/zotero.dtd
index b678a09e1c..61051f9323 100644
--- a/chrome/locale/sr-RS/zotero/zotero.dtd
+++ b/chrome/locale/sr-RS/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/sv-SE/zotero/zotero.dtd b/chrome/locale/sv-SE/zotero/zotero.dtd
index 34c5631211..eef18a3cd4 100644
--- a/chrome/locale/sv-SE/zotero/zotero.dtd
+++ b/chrome/locale/sv-SE/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/th-TH/zotero/zotero.dtd b/chrome/locale/th-TH/zotero/zotero.dtd
index acff6a8428..03de9e4e1d 100644
--- a/chrome/locale/th-TH/zotero/zotero.dtd
+++ b/chrome/locale/th-TH/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/tr-TR/zotero/zotero.dtd b/chrome/locale/tr-TR/zotero/zotero.dtd
index a86b60db65..6f9c3b2a18 100644
--- a/chrome/locale/tr-TR/zotero/zotero.dtd
+++ b/chrome/locale/tr-TR/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Dikey Olarak Böl">
 <!ENTITY zotero.pdfReader.splitHorizontally "Yatay Olarak Böl">
 <!ENTITY zotero.pdfReader.transferFromPDF "Ek Açıklamaları İçeri Aktar...">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/uk-UA/zotero/zotero.dtd b/chrome/locale/uk-UA/zotero/zotero.dtd
index a9caea0089..ff4a31b44b 100644
--- a/chrome/locale/uk-UA/zotero/zotero.dtd
+++ b/chrome/locale/uk-UA/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/vi-VN/zotero/zotero.dtd b/chrome/locale/vi-VN/zotero/zotero.dtd
index 67c7f06b42..4681fe23e2 100644
--- a/chrome/locale/vi-VN/zotero/zotero.dtd
+++ b/chrome/locale/vi-VN/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "Split Vertically">
 <!ENTITY zotero.pdfReader.splitHorizontally "Split Horizontally">
 <!ENTITY zotero.pdfReader.transferFromPDF "Import Annotations…">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/zh-CN/zotero/zotero.dtd b/chrome/locale/zh-CN/zotero/zotero.dtd
index 3399cdce64..43dccca81b 100644
--- a/chrome/locale/zh-CN/zotero/zotero.dtd
+++ b/chrome/locale/zh-CN/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "竖向分割">
 <!ENTITY zotero.pdfReader.splitHorizontally "横向分割">
 <!ENTITY zotero.pdfReader.transferFromPDF "导入注释……">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">
diff --git a/chrome/locale/zh-TW/zotero/zotero.dtd b/chrome/locale/zh-TW/zotero/zotero.dtd
index be4222e0e8..55b444e739 100644
--- a/chrome/locale/zh-TW/zotero/zotero.dtd
+++ b/chrome/locale/zh-TW/zotero/zotero.dtd
@@ -326,3 +326,6 @@
 <!ENTITY zotero.pdfReader.splitVertically "竖向分割">
 <!ENTITY zotero.pdfReader.splitHorizontally "横向分割">
 <!ENTITY zotero.pdfReader.transferFromPDF "导入注释……">
+<!ENTITY zotero.pdfReader.rotatePageLeft "Rotate Page Left">
+<!ENTITY zotero.pdfReader.rotatePageRight "Rotate Page Right">
+<!ENTITY zotero.pdfReader.rotatePage180 "Rotate Page 180°">