Digital signatures removed when inserting file into another PDF

Explorer ,
Mar 24, 2021 Mar 24, 2021

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I regularly assemble large documents -- 2,000-plus pages -- that consist of multiple chapters & appendices converted to PDF from Word files. The final insertion into the large document is a digitally signed letter from the person approving the overall document. When I insert the letter into the large PDF, Acrobat strips out the digital signature. Is there any way around this, other than printing the signed letter and scanning it into a PDF? 

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Create PDFs, Security digital signatures and esignatures

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Most Valuable Participant , Mar 24, 2021 Mar 24, 2021
It isn't exactly stripped out. What you want to do is beyond impossible. Digital signatures apply to an entire PDF - never to single pages. So you can't add or subtract pages in a signed document or combine it, the signature us either lost or utterly broken and useless. This is why PDF portfolios were invented. 

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Most Valuable Participant ,
Mar 24, 2021 Mar 24, 2021

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It isn't exactly stripped out. What you want to do is beyond impossible. Digital signatures apply to an entire PDF - never to single pages. So you can't add or subtract pages in a signed document or combine it, the signature us either lost or utterly broken and useless. This is why PDF portfolios were invented. 

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Explorer ,
Apr 01, 2021 Apr 01, 2021

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I was afraid it couldn't be done. I'll ahe to investigate portfolios, then. Thanks. 

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