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Stop users copying PDF text with PDF Anti-Copy

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PDF Anti-Copy is a free tool which protects PDF content by preventing users selecting or copying its text. There are similar programs available, but they typically work by applying the standard PDF security restrictions. This can easily removed with the right software. PDF Anti-Copy takes a more unusual approach, using GhostScript and its -dNoOutputFonts switch to essentially replace the text with vector graphics. The page looks the same, but the text selection options stop working because the text has gone. The advantage of this approach is it’s relatively unusual, and quite hard to spot. Casual users might be completely defeated.… [Continue Reading]

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