AUGUSTA, Ga. (WRDW/WAGT) - When we were kids, “invisible ink” meant lemon juice on notebook paper, write the message, and to see it someone would have to hold it up to the light for the words to appear.

Otherwise it just looked like a blank sheet of paper.

These days kids (and adults) don’t need lemon juice, they just need a keyboard.

It’s called invisible text, and it’s one of those digital tricks that’s clever, sneaky, and surprisingly easy. Here’s how it works:

You type a message in Google Docs, email, or another document program and then change the color of the font to white on a white background. Then poof, it disappears.

Students have been caught sneaking notes into homework assignments. Some set up “study groups” in shared Google Docs that double as secret chatrooms for those n

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