Add a signature to a PDF

Hi all,
I�m trying to add the bytes of a PKCS7 signature in a PDF in order to adobe reader verify it.
I�m using iText to do that... I can add my name in the signature, I generate the bytes that represent a PKCS7 signature, but when I put on the contents field it says the byte range is worng(when adobe reader trys to verify the signature). I looked the pdf reference but I don�t know how I can specify the byte range that starts the signature...
Anyone can help me?! Thanks!
Isabel

Can you help how did you get that far?
I am struggling to add Pdf signature form filed to an existing pDF.
Thanks
Shashi

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  • How to add Digital signature in existing file without using save as option?

    Hi,
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    When a signature is applied in Acrobat/Reader, it forces a Save As. Otherwise it can't work.

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