Re: [iText-questions] Modify a signed PDF

2008-04-01 Thread Leonard Rosenthol
Remember that the whole point of having a signature is to DETECT MODIFICATIONS! So if you are changing the PDF after the fact, you should indeed expect the signature to become invalid. Leonard On Apr 1, 2008, at 3:52 AM, Jose Antonio wrote: > Hi everybody, I'm working with itext 2.0.5 and I

Re: [iText-questions] Modify a signed PDF

2008-04-01 Thread Bruno Lowagie
Jose Antonio wrote: > Hi everybody, I'm working with itext 2.0.5 and I hava a problem: I have > a signed pdf and I want to modify this file. The problem is that if I > change this file the signatured becomes invalid. I wonder if I can > create a new revision of this file first using itext and ma

[iText-questions] Modify a signed PDF

2008-04-01 Thread Jose Antonio
Hi everybody, I'm working with itext 2.0.5 and I hava a problem: I have a signed pdf and I want to modify this file. The problem is that if I change this file the signatured becomes invalid. I wonder if I can create a new revision of this file first using itext and make all the changes in this new