diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index 072e703186..9a3e3d95b6 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -1448,6 +1448,7 @@ pdfReader.epubAppearance.pageWidth.revert = Use default page width
 pdfReader.convertToHighlight = Convert to Highlight
 pdfReader.convertToUnderline = Convert to Underline
 pdfReader.size = Size
+pdfReader.merge = Merge
 
 spellCheck.checkSpelling = Check Spelling
 spellCheck.addRemoveDictionaries = Add/Remove Dictionaries…
diff --git a/reader b/reader
index ab7cdf09a3..f4638f07ce 160000
--- a/reader
+++ b/reader
@@ -1 +1 @@
-Subproject commit ab7cdf09a3148f22d71ba92b4dcfacdd8dfe7f2f
+Subproject commit f4638f07ce82aa2870add00ae78f5d0ec715069d