http://www.windowsphone.com/en-us/store/app/pdf-reader/8f6154d6
好歹可以删老文件了。。。
PDF Reader update to v1.1 adds the following new features to the application:
? Management of historic PDFs in the history list so you can remove
individual files and also clear the whole list.
? Share PDF documents with others directly from the app using your SkyDrive
account.
? Support for encrypted PDF files that are password protected.
? Support for read-only PDF files.
