The Countermark site is currently undergoing maintenance

Safe and secure certificate management

Countermark offers a fast, easy way to secure PDF and paper certificates
Contact Us Try For Free  Get The App 

Multiple Fonts

Countermarks can currently be generated in any of four fonts.

Example Countermarks in different fonts

  • Latin
  • Cyrillic
  • Chinese
  • Katakana

Easy to read with software and human eye

Using The Countermark Phone App

Easy to control access by group, location or time

Private Countermarks can only be read by approved phone users.

Geo-Locked Countermarks can only be read within a certain distance of a defined location e.g. within 10 km of London.

Time-Locked Countermarks will expire after a certain time after which they can no longer be read. The time period can be specified in Days, Weeks, Months or Years.