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Great web for examples!

thank you

Hi, maybe you can test with chilkat:

https://www.example-code.com/foxpro/pdf_signatures.asp

Regards,

Toninho.

Dear Michel, The simplest way I have found to build a tool to check if a PDF is signed is using python. signed.py import sys, aspose.pdf as appdfSign = ap.facades.PdfFileSignature()pdfSign.bind_pdf(sys.argv[ 1 ])signatures = pdfSign.get_sign_names( True )if( signa...

FYI, Antonio,

If I use "Michel" in stead of "/SigFlags", I get a .T.

No, I just need to know if the document is digitally signed or not.

Dear Michel,

I got it, thank you

Do you also need to know information about the signature ?

Antonio,

I just send you a PDF-file which I digitally signed.

The PDF-file was made by saving as a PDF-file in Word.

Thanks.

Dear Michel,

Then I guess your PDFs are encrypted

Could you please email me one of them ? thanks

Antonio,

Unfortunately, I always get a .F. as result, whether it is signed or not.

Antonio,

Thanks a lot for your help.

I'll test it tonight or tomorrow.

Have a fine Sunday.

Much simpler

Use this function:

Code: Select all  Expand view

#include "FiveWin.ch"

function Main()

    MsgInfo( IsSigned( "fwintro.pdf" ) )

return nil

function IsSigned( cPDFFileName )

return At( "/SigFlags", hb_memoRead( cPDFFileName ) ) != 0

driessen wrote:Antonio,

I'm afraid that is somewhat to difficult for me.
I need to know if a document is digitally signed or not.
But I don't know how to implement your suggestion.

Can you please send a link here a sample digitally signed pdf?

Antonio,

I'm afraid that is somewhat to difficult for me.
I need to know if a document is digitally signed or not.
But I don't know how to implement your suggestion.

Dear Michel, Asking chatgpt: you can utilize a C library that provides PDF parsing capabilities. One such library is Poppler, which is widely used for working with PDF files in C You can download the pre-built Poppler library for Windows from the Poppler website: https://poppler.freedesktop.org/. He...

Hello,

A PDF-document can be signed digitally in Acrotbat Reader.

But does anyone know how I can check in my FWH-application if a PDF-document has been signed digitally?

Thank you in advance.