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Nitro Pro Windows Crashing when adding text or signature to PDF

Mike McDonald

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Mike McDonald

When I try to add text to a PDF I am able to type 1-2 letters, then the app closes. I tried creating a new signature (mouse doodle) after removing/reinstalling, but the app crashed before the signature was added as an option in Nitro.

Only occasionally get the option to send a crash report - mostly the app just freezes for a moment then closes.

Started happening earlier today with v14.7.1.21. I downloaded/ran the cleanup tool and installed the latest version (





From Event Viewer:



Faulting application name: NitroPDF.exe, version:, time stamp: 0x655e1553

Faulting module name: ntdll.dll, version: 10.0.19041.3636, time stamp: 0x9b64aa6f

Exception code: 0xc0000374

Fault offset: 0x00000000000ff349

Faulting process id: 0x34d4

Faulting application start time: 0x01da4282f7a0e8d1

Faulting application path: C:\Program Files\Nitro\PDF Pro\14\NitroPDF.exe

Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll

Report Id: 7d58f2cc-1299-45ce-9764-94aaa7c2a857

Faulting package full name:

Faulting package-relative application ID:


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  • 1 month later...
  • Official Nitronaut
Reymund Oyong

Greetings @Mike McDonald

Thank you for reaching out through our Community Forums!

I would like to know if this is still an issue or already resolved.
If still an issue, can you try running the latest cleanup tool then install the latest build of version 14, which is
If needed, the installer can be located here: https://www.gonitro.com/product-details/downloads - click the 'Download Nitro PDF Pro 14' link. 
The Clean Up tool can be found here: https://downloads.gonitro.com/professional_14.19.1.29/install-cleanup/install-cleanup.zip

If the issue persists, please let me know if the freezing issue can be reproduced on demand to any documents, including new document (File > New).

Kind regards, 

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