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Bug report: cannot save PDF in Windows 11

When a PDF file is opened from a mapped share e.g. N:\test.pdf which is mapped to a Windows 2022 DFS share e.g. \contoso.com\dfs\myshare\test.pdf. In Windows 11 when saving this file adobe reader prompts the message: "This document could not be saved. Cannot save to this filename. Please save the document with a different name or in a different folder". And the app suggests a temp folder on the computer with at temp file name. This issue only happens in Windows 11 and not in Windows 10. The issue has been tested with the same user account on both machines. The issue has been tested on multiple Windows 11 and Windows 10. All of the Windows 11's has the issue, while all Windows 10's works perfectly fine.
When using directly shares from the server e.g. \windows22.contoso.com\myshare\test.pdf there are no issue in both Windows 11 and Windows 10.

10 votes
Nawed Nabi Zada shared this idea  ·   ·  Report…  ·  Admin →
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  • Saif commented  ·   ·  Report

    We've encountered this same behavior in our environment. It seems to be isolated to Windows 11 when accessing PDF files via DFS namespace paths, likely due to how the OS handles file locks or permissions differently than Windows 10. Using direct UNC paths continues to work without issue, which supports the idea that the DFS abstraction is part of the problem.

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  • James commented  ·   ·  Report

    How did you solve this problem?

  • Gohar Clients commented  ·   ·  Report

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  • Peter de Jongh commented  ·   ·  Report

    Already lost some work caused by this issue! It would be really great if this can be solved.

  • Angel Georgiev commented  ·   ·  Report

    It needs to get fixed as soon as possible. I have lost some work due to the same problem.