Hi Antonio Mariano,
I've been facing the exact same problem here. Would you mind to share your
changes in iText source code, so that me and possibly others can implement
them?
Thank you very much in advance!
[]s, Renato Crivano
amarianoelaide wrote:
>
> Hi all,
> just a question about the
.
Regards, Michael.
-Original Message-
From: amarianoelaide [mailto:amari...@elaide.com]
Sent: Thursday, April 02, 2009 4:22 PM
To: itext-questions@lists.sourceforge.net
Subject: Re: [iText-questions] Hash computation problem
Thank you so much again.
I ask you the last question for this
.
Regards, Michael.
-Original Message-
From: amarianoelaide [mailto:amari...@elaide.com]
Sent: Thursday, April 02, 2009 4:22 PM
To: itext-questions@lists.sourceforge.net
Subject: Re: [iText-questions] Hash computation problem
Thank you so much again.
I ask you the last question for this
April 02, 2009 3:21 PM
Subject: Re: [iText-questions] Hash computation problem
Thank you so much again.
I ask you the last question for this thread.
Considering all your answers and pdf specs, it seems that deferred signature
is not a truly supportable PDF procedure.
Is it right?
--
View thi
Thank you so much again.
I ask you the last question for this thread.
Considering all your answers and pdf specs, it seems that deferred signature
is not a truly supportable PDF procedure.
Is it right?
--
View this message in context:
http://www.nabble.com/Hash-computation-problem-tp22801988p2
Subject: Re: [iText-questions] Hash computation problem
Thank you for the ultra-complete answer.
But what about if I don't remove ModDate and fileID but simply modify the
code to pass them to the library?
Is it possible, and do I avoid those problems you pointed out?
--
View this messa
Thank you for the ultra-complete answer.
But what about if I don't remove ModDate and fileID but simply modify the
code to pass them to the library?
Is it possible, and do I avoid those problems you pointed out?
--
View this message in context:
http://www.nabble.com/Hash-computation-problem-tp22
: Thursday, April 02, 2009 6:14 AM
To: itext-questions@lists.sourceforge.net
Subject: Re: [iText-questions] Hash computation problem
Ok, great!
But would it be possible to modify (in future releases) the iText file
creation procedure so to allow users to choose if they want hash to change
each time or
009 3:50 AM
To: itext-questions@lists.sourceforge.net
Subject: Re: [iText-questions] Hash computation problem
Thank you again Paulo.
Yes it's true, I need to realize a deferred signature.
So I tried to "adapt" iText to my needs and I modified the src code.
The differences between
Ok, great!
But would it be possible to modify (in future releases) the iText file
creation procedure so to allow users to choose if they want hash to change
each time or not?
In this way it would be possible to use iText for referred signature.
Just a suggestion.:-)
--
View this message in co
2009 9:50 AM
To: itext-questions@lists.sourceforge.net
Subject: Re: [iText-questions] Hash computation problem
Thank you again Paulo.
Yes it's true, I need to realize a deferred signature.
So I tried to "adapt" iText to my needs and I modified the src code.
The differences between two
If it works with Acrobat it's ok.
Paulo
- Original Message -
From: "amarianoelaide"
To:
Sent: Thursday, April 02, 2009 8:50 AM
Subject: Re: [iText-questions] Hash computation problem
Thank you again Paulo.
Yes it's true, I need to realize a deferred signature.
Thank you again Paulo.
Yes it's true, I need to realize a deferred signature.
So I tried to "adapt" iText to my needs and I modified the src code.
The differences between two consecutive hash computations are caused by:
- the file ID (md5 of date, free space and a sequence)
- the ModDate that it's
> Date: Tue, 31 Mar 2009 04:59:07 -0700
> From: spam haven CT
> To: itext-questions@lists.sourceforge.net
> Subject: Re: [iText-questions] Hash computation problem
>
>
> Thank you Paulo.
> Anyway I'd like to know more abou
ch 31, 2009 12:59 PM
Subject: Re: [iText-questions] Hash computation problem
Thank you Paulo.
Anyway I'd like to know more about this aspect.
Which object (stamper, signature appearance) does generate this ID (is a
sort of pseudo-random identifier)?
Is this ID saved into the final pdf?
Ca
Thank you Paulo.
Anyway I'd like to know more about this aspect.
Which object (stamper, signature appearance) does generate this ID (is a
sort of pseudo-random identifier)?
Is this ID saved into the final pdf?
Can you give me a link to a document containing this aspects?
Thank you again
--
View
Each time the program is run a different /ID is generated. This is a PDF
thing ad can't be changed.
Paulo
- Original Message -
From: "amarianoelaide"
To:
Sent: Tuesday, March 31, 2009 11:02 AM
Subject: [iText-questions] Hash computation problem
Hi all,
just a que
Hi all,
just a question about the hash computation.
With reference to this code:
PdfReader pdfReader = new PdfReader("/home/amariano/Desktop/sample.pdf");
FileOutputStream PdfInMemory = new
FileOutputStream("/home/amariano/Desktop/out.pdf");
PdfStamper pdfStamper = PdfStamper.createSignature(pdf
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