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Purchased new Nitro for new Laptop Windows 11 - Can't open older versions of Nitro PDF Editor documents


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Hi there

I just purchased anew laptop and new Nitro and can't open older documents that I used with the older version of Nitro.

Found a download link from 


But I still can't seem to get the new Nitro to open the old docs

Please help.


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  • Official Nitronaut
Reymund Oyong


Thank you for reaching out to us through our Community Forums!

Could you please confirm if you are getting the same error message (error code: 0x40000029) as described from the post you shared? 
If so, what is the version and build of your Nitro PDF Pro installation? You can see this information under the Help tab > About Nitro Pro.

The latest build of Nitro PDF Pro 13 is If your installation is already on this build, would you be able to share a copy of the document so we can test and see if the error can be reproduced on our end.
If your installation is not yet on the latest build, you can update by downloading the installer from the link below:

https://www.gonitro.com/product-details/downloads - please ensure to click the 'Download Nitro Pro 13' link.  

If you are getting a different error message, kindly share it in this post.

Kind regards, 

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