Signature doesn't cover whole document

[ilasi_razvan]

Hello,

I have a file that is signed with Adobe version 2018.011.20063. When I try to verify the signature with iText from Java it returns this error:

`Signature doesn't cover the whole document`. Is there a problem with this version of Adobe?

[Test Screen Name]

Does Acrobat (there is no product called “Adobe”) validate the document?

[ilasi_razvan]

Sorry about "Adobe", typing error. Yes, Acrobat validates the document.

[try67]

Then you need to contact the iText support about this issue.

[ilasi_razvan]

Ok. One last thing, after the signature is applied the last section of metadata is copied and placed at the end of the document. When I check the signature properties at Rev. 1 it says that "Document has not been modified since this signature was applied."

[margueritek]

Metadata is considered to be external to the PDF.

[try67]

No it's not, it's an integral part of it, and once the file is signed it can't be edited.

[margueritek]

For the purposes of "Doc Mod Analysis" (part of signature validation), metadata is considered to be external to the PDF, and not checked for changes.