I have PDFs that are generated using wkhtmltopdf that do not allow me to copy/paste the text. When I try to paste the text, I get blank spaces. I am able to copy/paste properly from acrobat and adobe reader. I have a sample document that was generated and is not working via the link below. I have tried both PDF Architect 1 and 2 and both have the same issue.
Sample PDF: https://files.lsgip.com/data/public/9cb487.php