Batch Digital ID Signatures in a Multiple Page PDF?

[ET2021 ET]

Does anyone know how to place a digital ID signature in the same place on every page in a multiple page PDF without the PDF having to be locked after the placement of first signature?

[Amal. · Accepted solution]

Hi there

Hope you are doing well and sorry for the trouble. As described you want to know how to apply the digital signature on every page of the PDF file.

Once you apply the digital signature on the PDF file it gets applied to the whole document (irrespective of the number of pages in that document)

You may try to create a stamp and then apply it on every page of the PDF file. Please check the correct answer marked in the similar discussion https://community.adobe.com/t5/acrobat-sdk/how-can-i-stamp-multiple-pages-of-the-same-pdf-with-a-bat... and see if that works for you.

Regards

Amal

[ET2021 ET]

It would have to be a Digital ID signature on each page to be accepted.  The multi-page document is comprised of single page letters each one needing its own ID signature.

[try67]

You'll have to do it manually, one page at a time. Again, though, this is not needed, nor desired.

The size of your file will balloon very quickly and the chances of it getting corrupt or invalidated will increase as well. Once you digitally sign the file once it applies to the whole document, including all the pages in it. There's really no need to sign each page on its own.

[ET2021 ET]

Each individual letter that comprises the PDF is sent to a different person.

[try67]

That won't work. You can't extract pages from a signed file. You have to split them to be individual files first, and then sign each one.

[ET2021 ET]

The letters wouldnt be extracted into separate files from that point. 

They would be printed out on to paper from the pdf file.

[try67]

A printed digital signature is useless, too, as it can't be verified. You can just add a scanned image of your signature to the file, instead.

[ET2021 ET]

It would have the digital ID signature with the time, date and printed name, not just the one with the signature.

[try67]

No, it won't. It will have an image with those details. That image is not the same as a digital signature, as it can't be validated against a public key. Anyone could take that image and paste it onto any file they wanted. That doesn't mean the file is signed, despite what many believe.

[ET2021 ET]

That would be true of any letter that was signed with ink and then reproduced on a copier.

[Test Screen Name]

This is ABSOLUTELY AND FUNDAMENTALLY WRONG. Digital signatures apply to the entire document, always. You cannot "sign a page". Not only that, multiple signatures slows down terribly and breaks at a low number. DO NOT DO THIS.

It sounds as if you are anyway looking at the separate marks on the page. This is also wrong. A digital signature must NOT be checked by looking at the page, but by the signature panel. It would be best to turn OFF marking the page, it confuses users and leads them away from checking properly.

It would be reasonable, and possible, to use a stamp to mark each page, then wrap all up with a single digital signature.