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File cannot be opened, although correct password.

Community Beginner ,
Jan 13, 2022 Jan 13, 2022

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hello, 

 

I can password protected file
open with my mobile computer (Mac with Intel CPU).
but with the second pc (Mac with M1 CPU) I always get the message; that password is wrong. This file can be opened on this computer by entering a password with a preview.

What could it be?

 

thank you

A. Korkmaz

TOPICS
General troubleshooting , Security digital signatures and esignatures , Standards and accessibility

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1 ACCEPTED SOLUTION
New Here ,
Jan 25, 2022 Jan 25, 2022

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Hi, I have the same problem, it's very repeatable.

The work-around is to disable "Enable native OS mode for optimal performance" in settings. Doing this immediately allows password-protected PDFs to be opened.

I think it needs adding to the "known limitations" here Apple Silicon M1 processor support | Acrobat DC and Acrobat Reader DC (adobe.com)

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Adobe Employee ,
Jan 13, 2022 Jan 13, 2022

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Hi there

 

Hope you are doing well and sorry for the trouble.

 

Woulld you mind sharing the version of the Adobe Acrobat DC you are using on Mac M1? To check the version go to Help > About Acrobat and make sure you have the recent version 21.11.20039 installed. Go to Help > Check for updates and reboot the computer once.

 

Also try to reset the Acrobat preferences as described here https://community.adobe.com/t5/acrobat-discussions/how-to-reset-acrobat-preference-settings-to-defau...

 

You may also try to create a new test user profile with full admin rights or enable the root account in MAC and try using the application there and check.

 

Regards

Amal

Regards
Amal

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New Here ,
Jan 25, 2022 Jan 25, 2022

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Hi, I have the same problem, it's very repeatable.

The work-around is to disable "Enable native OS mode for optimal performance" in settings. Doing this immediately allows password-protected PDFs to be opened.

I think it needs adding to the "known limitations" here Apple Silicon M1 processor support | Acrobat DC and Acrobat Reader DC (adobe.com)

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Community Beginner ,
Jun 08, 2022 Jun 08, 2022

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yes, it works so. Thank you

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New Here ,
Aug 23, 2023 Aug 23, 2023

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this workaround works for me as well. Thanks!

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New Here ,
Aug 23, 2023 Aug 23, 2023

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Hi Amal,

 

I am running into the same problem.

 

Screenshot 2023-08-23 at 16.24.43.png

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New Here ,
Jan 23, 2025 Jan 23, 2025

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This fix used to work for me, however the problem has returned and I no longer seem to have the option in Preferences > General (or anywhere else for that matter) to disable "Enable native OS mode for optimal performance".  screenshot with version attached

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New Here ,
Feb 01, 2025 Feb 01, 2025

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Same issue. Fix no longer works because that option is Preferences is no longer there.

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Adobe Employee ,
Feb 12, 2025 Feb 12, 2025

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Hello,

 

I hope you're doing well, and we apologize for the delayed response and the trouble.

 

Is it still happening with the latest version of Acrobat Pro 24.005.20xxx Optional update, Jan 30, 2025? Please ensure you have the latest version of Acrobat installed on the machine. Check for any pending updates from the Menu > help > check for updates, install the updates, restart the app and the machine, and check. For more information, see this: https://adobe.ly/41bAq0H.

 

Could you please share the screenshot of the Preferences window? Are you on a Mac or Windows machine and what is the OS version? 

 

We're here to help, just need more info.

Thanks,

Anand Sri.

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New Here ,
Feb 12, 2025 Feb 12, 2025

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Please help I have same issue.  Password protected file opens ok on my work PC but cannot open on my MacBook.  The version of 2024.005.20400.   States that is is already up-to-date when I check for updates.  The proposed solution above (Enable native OS mode for optimal performance) is not available in my version of the reader.

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New Here ,
Feb 12, 2025 Feb 12, 2025

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LATEST

I'm having the same issue. I downloaded the older version that has the 'enable native mode' toggle but it's still not working. I downloaded the older version here if anyone else wants to give it a try: https://get.adobe.com/reader/otherversions/ 
And selected macos 10.14 -> english

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