Da, si eu m-am jucat cu PDF Xchange Viewer, dar nu uita ca:
"All features marked as 'PRO' can only be used in evaluation mode from the free version.
If you save the file after having used these PRO features, it will be altered to include watermarks making it
obvious it has been modified with an evaluation copy.
These watermarks CANNOT subsequently be removed!
Please ensure that you do not modify original documents using these evaluation features if they cannot be
recreated again and if it is important to you and cannot be reproduced!"
