Date: Tue, 7 Aug 2012 13:35:01 +0200
From: [email protected]
To: [email protected]
Subject: Re: [iText-questions] Use itextsharp create new pdf copy from existing
file keeping signature
On 7/08/2012 12:57, Gonçalo Martins
wrote:
Hi everyone,
I'm using iTextSharp for the first time this week and I have
some problems related to the following task:
I need a C# method to:
1- receive a file path, read the related PDF and,
OK.
-> Ok, this is the easy part..
2- set the "PDFXConformance" property,
Just setting the property isn't difficult.
Making sure the document passes a validation test: extremely
difficult!
I don't know of any software that does this "automagically".
All the software I know requires human (manual) intervention:
- make decisions about colors,
- choose a substitution font,
- ...
-> Is there any way, using iTextSharp to validate the PDFXConformance?
3- Embed one new Font and
OK, that will work in some cases, but not always.
Embedding a font may require rewriting the complete content stream.
But it's no use making an assessment about the workload, because:
-> The requirement of this issue is in a controlled use case where we only can
use 2types of Fonts.In this case can you tell me how and what objects should I
use (a code snippet of it).
4-maintain the digital signatures that the PDF
have.
That is impossible! Imagine a closed box that is sealed.
What you're asking is: I want to put some stuff in that box without
a seal.
I count on your common sense to understand that this is impossible.
We're software developers, Gonçalo, NOT magicians.
-> I understand that and had the idea that it's not possible..But I never
worked with iTextSharp before and didn't knew the "magic" that it can do and if
you found any workaround to do this..
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