Digital Sign in PDF

[NizamUlMulk]

I'm using TUniPDFFrame to show PDF files, but this component doesn't show the advertisement about digital sign.

The client need to see that notice. (adj. images)

 

Also, I need to know if an uploaded pdf is digitally signed before save on BD.

Could there be any property that indicates whether it is signed or not?.

Ex.

  bool hasSig = false;
            for (int i = 1; i <= QP.FormFieldCount(); i++)
                if (QP.GetFormFieldType(i) == 6)     // FormFieldType = Signature
                    hasSig = true;

taken from  http://www.quickpdf.org/forum/how-do-i-detect-that-a-pdf-has-a-digital-signature_topic2529_post10489.html?KW=FormFieldType#10489

 

 

 

 

[Sherzod]

Hi,

 // Hide signatures because we cannot validate them.
    if (data.fieldType === 'Sig') {
    this.setFlags(AnnotationFlag.HIDDEN);

https://github.com/mozilla/pdf.js/search?utf8=%E2%9C%93&q=sig&type=

 

 

"Solution":

 

You can find these lines in the file ... \pdf.js\build\pdf.worker.js and comment them, but I'm not sure this is the right decision or not

 

** if you make changes, do not forget to clear your browser's cache

 

 

Best regards,

[Stemon63]

Good...

I will try, I need the same...

Thanks,

Stefano

[NizamUlMulk]

Thanks.

I've commented those lines, cleaned navigator cache and now .... anything shows the component!!!
a black square box only ....

[Sherzod]

Hi,

 

Can you check with this signed pdf ?

 

SampleSignedPDFDocument.pdf

 

And which browser are you using ?

[NizamUlMulk]

Hi,

 

Can you check with this signed pdf ?

 

SampleSignedPDFDocument.pdf

 

And which browser are you using ?

Anything seems....

The test browser is Chrome Versión 62.0.3202.94.

How can I adjunt a file here?

[NizamUlMulk]

Hi,

 

Can you check with this signed pdf ?

 

SampleSignedPDFDocument.pdf

 

And which browser are you using ?

With Mozilla works!

[NizamUlMulk]

Any other suggestions to make it work on Chrome?.
I Need know if document is signed digitally, not see the sign.

[diegojmap]

Do you have this demo?