You'll be stuck forever if you don't provide more details.
Where did you get the signature file from?
Does it also fail if signing in Acrobat?
What iText version are you using?
What particular code are you using from
http://itextpdf.sourceforge.net/howtosign.html?
Paulo
> -----Original Message-----
> From: itext-questions-bounces@(protected)
> [mailto:itext-questions-bounces@(protected)
> Behalf Of linkjaya
> Sent: Monday, July 16, 2007 9:58 AM
> To: itext-questions@(protected)
> Subject: [iText-questions] Problem while digitally sighning
> pdf using IText.
>
> Hello all, I want to add a digital signature in pdf file
> containing singature field using Itext. i did as given in
> http://itextpdf.sourceforge.net/howtosign.html. but i always
> get following exception while loading the signature file.
>
java.io.IOException: DerInputStream.getLength():
> lengthTag=109, too big. can some one know, where is my
> problem? I am stuck over here. Any help will be appreciated.
> Regards Jaya N Pasachhe.
Aviso Legal:
Esta mensagem é destinada exclusivamente ao destinatário. Pode conter informação confidencial ou legalmente protegida. A incorrecta transmissão desta mensagem não significa a perca de confidencialidade. Se esta mensagem for recebida por engano, por favor envie-a de volta para o remetente e apague-a do seu sistema de imediato. É proibido a qualquer pessoa que não o destinatário de usar, revelar ou distribuir qualquer parte desta mensagem.
Disclaimer:
This message is destined exclusively to the intended receiver. It may contain confidential or legally protected information. The incorrect transmission of this message does not mean the loss of its confidentiality. If this message is received by mistake, please send it back to the sender and delete it from your system immediately. It is forbidden to any person who is not the intended receiver to use, distribute or copy any part of this message.