Signature validation

[juan-morales]

how to validate a signed document against a certificate ?

[jmarxuach]

What do you mean ? checking if sign is done ? if yes, open the document with PDF reader and go to signatures.

[juan-morales]

what I mean is ...

giving a certificate and also a pdf document ... can batchPDFSign validate if the PDF document was signed with the giving certificate?

Why ?

We have a system that generates signed PDFs documents.

We also have a VALIDATOR SITE ... where a user can upload a pdf document and then we can perform a series of validation on it and its content; one of those validations is checking if effectively was signed with our certificate or not

[jmarxuach]

That's a very good functionality ! Can be done.

1. How many answers can be ? Yes | No ?
2. How do you get the answer ? Are you going to use it as a shell execution the jar returns text. Or as a library ?
3. Im thinking that could be another jar project. Just a PDFSignValidator. It would be more simple.