How does pdf work

[Redpandas]

!How does PDF files work in adobe acrobat reader im just woundering how it works  Because it keeps comeing up with no supported file how do i get this to work pls help    

[Test Screen Name · Accepted solution]

Normally it just works. Unless you try to open something that is not a PDF, people try that all the time and it doesn't work.

What's your EXACT error message and where's the file from?

[Redpandas]

No Supported File Open

Open a supported document from My Documents, then tap the Create PDF tool.

[Test Screen Name]

Where's the file from? What do you know about it?