I noticed that the file size of my images is much smaller than the original if I save them in the PNG file format. After some time I discovered, that PNG plugin uses attribute png:compressionLevel ...

Blogger David Naylor managed to get himself dugg for posting this cool 24-bit bitmap that shows every single color in the 24 bit spectrum. The file is 4094 by 4096 pixels which works out to precisely ...

demolishedcompressor pack's a .js file into a PNG image with an HTML payload. When opened in a browser, the HTML extracts and executes the javascript.

In late 1994, controversy was brewing over royalties being imposed on GIFs due to the Lempel–Ziv–Welch (LZW) data compression technique used to underpin this image format. Unisys, which had patented ...