Photoshop—Invisible Ink and Decoder Rings
By: Knut Kubenz on Wednesday, June 24, 2009
Reader Level: 
Over the years we've gone over a lot of different tutorials using Photoshop and they've, for the most part, been very practical and creative solutions to everyday situations as well as unusual situations. Everything from complete digital make-overs in Photoshop to Pasta Verde—Wait a minute, Pasta Verde is what I'm having for dinner tonight. Suffice to say, all work and no play makes Jack or Jill a dull Photoshop user, so I thought this next tutorial might want to bring out the secret agent in you.
Using some very simple tools, such as the Text Tool and Levels in Photoshop, you'll learn how to encrypt a secret message in one of your photographic images which you could send off to another secret agent. Let's begin.
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