How to Open a PDF File With Yahoo Mail. The Portable Document Format makes it possible for you to open and view documents, no matter what operating system, software or computer you have.

How to Change Settings to Open a PDF File. A Portable Document File is a type of file that uses an open standard across different computer platforms and programs.

What files can you open in Gmail? Depending on which platform you use with Gmail, you can open a range of attachments without downloading them. However, you can't open some attachment types.

When you receive a PDF document by email that you must sign, the process of printing out the file, signing on the dotted line with a pen, scanning ...