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 ...

Being able to combine PDF files is helpful in an office environment where various documents are collected, scanned and then collated into one document for clients or data history purposes. Merge PDF ...

If you are unable to edit PDF files on Acrobat Reader DC, the following methods can help you fix it. This is an error caused by confusion between two kinds of ...

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.