: If you decide to purchase a license, you can enter it by going to Help > License Key within the application. PDF-XChange Editor Plus
: A feature to identify differences, insertions, or deletions between two documents. : If you decide to purchase a license,
: You can immediately view, annotate, and perform basic OCR on documents for free. : If you decide to purchase a license,
: Tools to create and edit interactive PDF forms. : If you decide to purchase a license,