Disabled internal links after signature PDF

[UglyRichard]

Issue Description:

I'm using LaravelA1PdfSign to sign a PDF created with DomPDF. The PDF includes several internal links <a href="#id"> that work correctly before signing. However, once I apply the certificate to sign the document, the links stop functioning (are not clickable anymore).

It seems that the signing process affects the behavior of these internal links. I suspect this might be due to the integrity checks imposed by the digital signature, but I would like to know if there's any way to retain the functionality of the links after signing the PDF.

Steps to Reproduce:

Generate a PDF using DomPDF.
Add internal links using <a href="#id">.
Verify that the links work as expected in the unsigned PDF.
Sign the PDF using LaravelA1PdfSign.
Open the signed PDF and notice that the internal links no longer function.
Expected Behavior: The internal links should remain functional even after the PDF is signed.

Actual Behavior: The internal links stop working after signing the PDF.

Environment:

PHP: 8.2.4
Laravel: 10.41.0
DomPDF: 2.0.1
LaravelA1PdfSign: 10.0.10.1

[lsnepomuceno]

Hello @UglyRichard ,

I'm checking what causes the problem to apply the solution.