We have put together list of Free Stamp collections for use in PDF-XChange Free or PRO, some we have created and some
have been created and submitted by other PDF-XChange Viewer users. More will be added soon.
To add these stamp collection to your PDF-XChange Viewer download and unzip then, follow the steps outlined in this knowledgebase article:
If you've created custom stamps specific to educational, scientific or industrial context and would like to share them with other users,
please send them to firstname.lastname@example.org.