diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index 0a3ad5f40f..4365649e04 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -1329,3 +1329,5 @@ pdfReader.zoomAuto = Automatically Resize
 pdfReader.zoomPageWidth = Zoom to Page Width
 pdfReader.nextPage = Next Page
 pdfReader.previousPage = Previous Page
+pdfReader.page = Page
+pdfReader.readOnly = Read-only