I can’t tell you the number of times I have watched someone receive a file via email only to watch them print it out so they can scan it again…so they can file the document into their imaging system.
If the document sent to you is not a PDF or other acceptable image file, save it as a PDF or Print it to a PDF Printer. Save the PDF to the appropriate destination folder. Be sure your imaging system can “see” or “browse” to the same folder.
If you need to file this document, most imaging systems allow direct attachment. That means, you can open your imaging system and attach the document (that you saved instead of printed & scanned) directly to your Inbox.