Can you provide an example of how to automate/script the validation of a tagged PDF file for PDF/UA compliance using Perl?

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Validating Tagged PDF files for PDF/UA Compliance using Perl

Validating tagged PDF files for PDF/UA compliance can be automated through scripting in Perl. Below is an example of a Perl script that uses the PDF::API2 module to validate a tagged PDF file:

```perl
use strict;
use warnings;
use PDF::API2;

my $pdf_file = 'example.pdf';

my $pdf = PDF::API2->open($pdf_file);
my $catalog = $pdf->getPages()->{Count};
my $tagged = $pdf->getValue($catalog, 'StructParents');

if ($tagged) {
print "PDF file is tagged and PDF/UA compliant.n";
} else {
print "PDF file is not tagged or not PDF/UA compliant.n";
}
```

This Perl script opens a PDF file ('example.pdf'), checks if it is tagged, and verifies its PDF/UA compliance based on the presence of structure elements. You can further customize this script to perform additional validation checks as needed.

By automating the validation process using Perl scripts like the one above, you can ensure the accessibility and compliance of tagged PDF files with the PDF/UA standards.

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