Re: [iText-questions] problems with PDF signing

2011-10-26 Thread mkl
Mike, Mike Calmus wrote: > I read through the forums and was planning to use the "reuse the stamper" > approach. Unfortunately, though neither the stamper nor the signature > appearance objects are serializable and therefore can't be stored in my > HTTP session for reuse. They would be difficult

Re: [iText-questions] problems with PDF signing

2011-10-26 Thread Mike Calmus
Thanks Michael. I read through the forums and was planning to use the "reuse the stamper" approach. Unfortunately, though neither the stamper nor the signature appearance objects are serializable and therefore can't be stored in my HTTP session for reuse. I've tried to find the sample implmentatio

Re: [iText-questions] problems with PDF signing

2011-10-20 Thread mkl
Mike, Please search the archives for "deferred signing". In a nutshell: the time of pdf stamping is included in the signed pdf. Thus, each time you create a stamper for signing, the hash of the bytes to sign is different. Some ideas on how to get around this problem have been presented on this l

[iText-questions] problems with PDF signing

2011-10-20 Thread Mike Calmus
We are filling in a PDF and signing it using an external digest. The code sample for doing this works fine in the normal flow where everything is done at one time. We have an unusual scenario, though where we must do the signing in a separate VM than the generation is done. I have separated the cod