Pretty Good Envelope (PGE)

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File Format
Name Pretty Good Envelope (PGE)
Ontology
Released 1994

Pretty Good Envelope (PGE) is a DOS program that hides files by appending them to other files and optionally encrypting them.

It hides a message file in another file by the very simple method of appending the message to the file, and then appending a 4 byte little endian number which points to the start of the message.

It says it's for GIF or JPG images, but it will work with any file.

  • v1.0 - by XCrypt Productions (Roche'Crypt)
  • v2.0 - by Robert G. Durnal removes the encryption but adds PGECLEAR, which removes the hidden data from a file


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