I received a .pdf file from someone on a non-linux machine and when i try to open it it says "Unable to open document. File type Zip archive (application/zip) is not supported". So, I rename it "file.pdf.zip" and open it up with unzip. I then get a zipped folder with a file named "[Content_Types].xml and 3 folders (docProps, _rels, word) with various files inside. None of them are a useable .pdf file.
When I send it back to someone on a non-Linux they can view it fine so I know it isn't corrupted. I need to view the .pdf on my Linux machine. How do I do that?
Note, most .pdf's I receive open fine, just certain ones don't work.