I have a similar problem, I need to set the permissions for a itext generated
report for compliance rules that have to do with the Financial Planning
industry. I need the client to be able to read files I generate with out a
password but I also need limit their permissions with the file.

Is there a fast track for itext requests?


Seung Hyun Park-2 wrote:
> 
> Hello.
> 
> 
> 
> I have a question about the signing of PDF with iText.
> 
> 
> 
> I know that PDF encryption spec. provides the permission to allow signing
> and adding annotations.
> 
> 
> 
> I can sign a PDF file using Acrobat without typing owner password if it
> has
> the permission to allow signing.
> 
> 
> 
> 
> 
> But, iText always needed owner password to sign on the PDF files, although
> they already had the signing permission, when I made some test codes and
> tried them.
> 
> 
> 
> To be specific, PDFReader can read the PDF files encrypted without setting
> owner password but error occurs at PdfStamper.CreateSignature method.
> 
> 
> 
> If I set owner password at the constructor of PDF reader, the error
> disappears.
> 
> 
> 
> But, I have to insert signature without owner password at my scenario.
> 
> 
> 
> 
> 
> My test codes are based on the article – "How to sign a PDF using iText
> and
> iTextSharp" and work well with unencrypted PDF files.
> 
> 
> 
> 
> 
> How do I sign on the PDF files that they are encrypted but have signing
> permission?
> 
> 
> 
> Strictly speaking, I want to know that it is possible to sign them with
> iText.
> 
> 
> 
> 
> I attach the sample PDF file that I have used for testing.
> 
> 
> 
> 
> 
> If you could take a few minutes to answer my questions, I would really
> appreciate it.
> 
> Always thank you in advance for your help.
> 
> 
> Best regards,
> 
> S. H. Park
> 
>  
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> 

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