by wpengine | Aug 11, 2021
See Semi-covert security feature
by wpengine | Aug 11, 2021
See Covert security feature
by wpengine | Aug 11, 2021
See Forensic security feature
by wpengine | Aug 11, 2021
An electrostatic digital printing process that produces text and graphics by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a ‘drum’ which defines a differentially charged image.
by wpengine | Aug 11, 2021
A semi-hidden printed image that can only be seen at a certain viewing angle.
