Signature not verified - Document becomes locked

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eilhys
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Posts: 1
Joined: Fri Dec 12, 2025 6:47 am

Signature not verified - Document becomes locked

Post by eilhys »

Is there any way within PDF-XChange Editor to continue working with a PDF — saving, editing, merging, or assembling it — even if one or more digital signatures in the file are expired, invalid, or show as not trusted?

I regularly compile large documents up to 5000 pages where many supplier documents contain outdated or expired signatures.
Adobe Acrobat allows editing and document assembly in these cases, but in PDF-XChange Editor the document becomes locked, and I cannot proceed with operations such as saving, clearing signatures, or inserting pages.

I simply cannot ask all the issuers for a new signature every time this comes up. Then I would be forced to use another product :(

I hope this is possible, thank you
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Dimitar - PDF-XChange
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Posts: 2638
Joined: Mon Jan 15, 2018 9:01 am

Re: Signature not verified - Document becomes locked

Post by Dimitar - PDF-XChange »

Hello Eilif,

Welcome to our Forum.

Your statement is essentially correct.

PDF‑XChange Editor does lock documents with invalid, expired, or untrusted digital signatures, preventing editing, saving, or merging.

Unlike a few other products, it does not allow bypassing those restrictions, which means you cannot continue assembling or modifying such files without first removing the signatures.

However, I will ask our develops if they are willing to change how our products treat encrypted files, and will let you know what their decision will be.

Regards.