The download will start automatically, if it does not you can download it manually from here.

After downloading double click on uMark-PDF.exe file to start the installation process.

uMark PDF Watermarker requires Microsoft .Net Framework 4.5 or higher to run which comes pre installed with Windows 8 and later versions. Download .Net Framework

How to uninstall uMark PDF Watermarker?

On Windows XP go to Control Panel , select Add or Remove Programs, find uMark PDF Watermarker in the list and click Uninstall.

On Windows Vista and later versions go to Control Panel, select Programs and Features, find uMark PDF Watermarker in the list and click Uninstall.