You are downloading the PDF Reader XAP file v188.8.131.52 for Windows Phone. PDF Reader is a free and useful Productivity app: PDF Reader is a free app for viewing and interacting with PDF documents on Windows Phone 8. This app supports a wide variety of PDF file ... You can now download the offline XAP file to install & try it.
Download Locations for PDF Reader 184.108.40.206 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline PDF Reader XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.