Are you trying to open a password-protected PDF or ZIP file? Then, you already know how frustrating it can be. You try out different tools, and the result is a ...

Google Chrome for Android will soon finally open PDF files on its own without the need for a third-party app. You can search through PDFs or annotate them before saving them to Google Drive. This ...

The pdf in this thread, for example, will not open. <BR><BR>But this one will. <BR><BR>Can someone with more skill than I examine these links to determine whether there is something about the file ...