Portable document format (PDF) files remain a popular choice for business documents ranging from contracts and forms to manuals and reports, so there's a good chance you need to open them often.

Q: Sometimes when I try to open a file or e-mail I get the message: "The selected file has an extension (PDF) that is not recognized by Windows Media Player but the player may be able to play it.

There are times when Acrobat Reader DC fails to open a PDF file and displays the following error message: Adobe Acrobat Reader could not open PDF because it is either ...

To use SumatraPDF, visit the official homepage and click 'Download' at the top of the screen. Click the installer that matches your environment. This time, select the 64-bit version ...

To know more about these above-mentioned steps, keep reading. Following that, go to the File Block Settings tab and make sure that the Open selected file types in Protected View setting is selected.

As expected, Dropbox and Adobe are announcing today that people can now open PDF documents stored in Dropbox using the Adobe Acrobat Reader app on Android devices. This lets users of the apps sign, ...

Execution, integrity, and provenance determine PDF safety.

Q. I cannot open Adobe PDF files on the Internet while using the latest Adobe Reader software on my new Windows XP computer. When I click on a PDF file when I am on the Internet a window opens and ...