Adding metadata to PDF via PHP

Question

I need to augment a PDF with a custom metadata field on download in PHP (5.3).

I have been looking at the pdftk library, but I can\'t get my head around how I would

Answer 1

You could use Zend_Pdf. It's from the Zend Framework but can be used as a standalone component. Adding metadata is as easy as:

  $pdf = Zend_Pdf::load($pdfPath);
  $pdf->properties['Title'] = 'New Title.';
  $pdf->save($pdfPath);