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Acrobat Pro DC - There was an error opening this document. The file is already open or in use

New Here ,
Mar 20, 2020 Mar 20, 2020

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I am using Acrobat Pro DC 20.006.20042 on a Windows 10 PC.

 

When I try to open a PDF from a website, I receive the dialog box asking me if I want to Open or Save the file. When I choose Open, Acrobat will open to the Recent files page and display the error "There was a problem opening this file.  The file is already open or in use by another application."  If I choose Save File from the webpage, save the file locally and then open the PDF files there is no problem.

 

This problem began within the last few days or weeks and I cannot find a fix in the Community.

 

I have tried the following steps to resolve:

1. Cleared temp files from windows and browser cache

2. Rebooted computer

3. Signed out of Adobe account in Acrobat Pro DC, rebooted and logged back into account

4. Tried the Help>Repair Installation from the Acrobat menu

 

 

 

TOPICS
Crash or freeze, General troubleshooting

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correct answers 1 Correct answer

New Here , Mar 18, 2021 Mar 18, 2021
I was having this issue too and come to find out, my McAfee WebAdvisor Add-on was causing the issue.  I guess it grabs the file for inspection, therefore, not allowing Adobe Reader app to open it from the browser.  When I disabled this Add-on, the file opens from within Fire Fox.  I'm not sure how to get this to work with this Add-on enabled.

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New Here ,
May 10, 2021 May 10, 2021

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This!! My problem is finally solved.  I had this same issue but in Chrome. The McAfee web advisor was blocking the PDF from opening. Just for reference, I was getting the "this file is already open or in use by another application". Check your anti-virus settings in your internet browser! 

 

Chrome Settings > Extensions > Disable McAfee. My PDF opened immediately. 

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New Here ,
Nov 30, 2021 Nov 30, 2021

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Yes - Its the Mcafee extention in firefox that causes it! Thank you! Now I disabled it, it seems to work fine 🙂

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New Here ,
Mar 24, 2021 Mar 24, 2021

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Thank You!!! Was definitely my McAfee ectension! I disable it and pdf opened up perfectly!

 

Thanks Again for sharing

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New Here ,
Mar 24, 2021 Mar 24, 2021

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Spell check !!

 

Extension :0)

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New Here ,
Mar 24, 2021 Mar 24, 2021

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I worked with McAfee on this for 3 hours.  
Long story short, we uninstalled "WebAdvisor by McAfee" and reinstalled it.  Seems to work now.  Something was corrupted in that application.  

Look for it on your program list in the "W's".  It's not grouped with the other two McAfee apps.  

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Community Beginner ,
Apr 20, 2021 Apr 20, 2021

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Thank you for your persistence in working with McAfee!

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