PNG Parser Differential

lastmod 2021-12-28created 2021-12-281 edits

Making a PNG image that looks different only on Apple devices

Features

• Makes a PNG image that looks different only on Apple devices by exploiting a bug in a parallel-decoding PNG implementation
  • On Apple devices: "HELLO APPLE" and an old Macintosh image
  • On other devices: "HELLO WORLD" and an old IBM PC
• Simple source code is published so anyone can generate similar images

See also

• png

Favorite site

• PNG Parser Differential