Working with Adobe Files on SharePoint
There are differences between working in Microsoft applications on SharePoint and working with (Adobe) PDF files on SharePoint. Those differences can be seen in accessing the files both through File Explorer and through the browser.
There are some tips below. There may be options to improve the interactions between Microsoft and Adobe products in the future (most requiring additional licensing and fees), but as it stands now, you’ll find limitations, suggestions, and some guidelines below.
- Adobe Acrobat files (.pdf) cannot be simultaneously edited, or edited “in place” through a browser connection to SharePoint. In our current environment, we can simultaneously edit and save Microsoft files that reside on SharePoint, but this is not possible with Acrobat files.
- When opening Adobe files, you may be prompted to “check out” the file. This should be done, if you wish to make changes in the file. This requires that the file then be checked in if changes have been made.
- When using File Explorer \\linkto:UseFileExplorertoAccessSharepoint and opening a .pdf, Adobe prompts you to either "Check Out & Open" the file or just "Open" the file.

- If you Check Out & Open the file, you may be prompted to Check In the file when you close it. Often, though, you will not see this prompt, and you were only given the instructions when you first opened the file. See image above.
- There is no indicator in File Explorer that the file is checked out (this is a limitation with using File Explorer to access SharePoint). You will only see this when looking at SharePoint site using an internet browser. See first image below.
- In order to ensure others can view your changes to the document (if you made any), or be able to check out or delete the document (to replace the document at a future time):
- When you've closed the pdf, verify that the file is not checked out by using Internet Explorer, Edge, or Chrome, and navigate to the file's location. If it still shows that it's checked out (see the first image below), then select Check in or Discard check out (if there were no changes or you do not wish to save them).
- In Acrobat, make sure you go to File > SharePoint/Office 365 Server and click Check In or Discard Check Out. If you do not see this option, the file was not checked out when it was opened and can just be closed. See second image below.

Indicators that a file is still "checked out" in a SharePoint library.
In Adobe Acrobat, Go to File and SharePoint/Office 365 Server to find the option to Discard Check Out.
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