Print with Invisible Ink to keep Precious Documents Classified
Add a Comment By Eran Abramson on April 27th, 2008 in How to and Hacks
Have you ever wanted to write a letter to someone but wanted to make sure no one else reads it? Would you like to make any letter or picture only visible by black light? The tutorial below presents a way to print with “invisible” ink, so you could create some spy-like documents…
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