The paid version, Pdf xchange editor, offers additional features such as editing text, images, and objects within PDFs, as well as converting PDFs to other formats.
The free version is suitable for most users and includes features such as viewing, printing, and commenting on PDFs. pdf xchange viewer license
If you need to save annotated PDFs without watermarks, you are technically using it as a creator tool, not just a viewer tool, and thus require a paid license. The paid version, Pdf xchange editor, offers additional
Download the current PDF-XChange Editor from the official Tracker Software website. If you already own a legacy Viewer Pro license, check if it is eligible for a free or discounted upgrade to the new Editor. Download the current PDF-XChange Editor from the official
The license explicitly states: "The free version is free for viewing and annotating... but watermarks are applied to printed or saved modified documents."