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 ...

Tom Boutell is a modest guy. Considering that one of his most notable achievements is so much a part of the background of the web, figuratively and literally, maybe that character trait makes sense.

What’s inside a PNG file? Graphics, sure. But how is that graphic encoded? [Evan Hahn] shows you what goes into a single black pixel inside a 67-byte file. Why so many bytes? Well, that is exactly ...

JPEG (or JPG) and PNG – two titans in the world of image formats, both have widespread adoption but differ in their strengths and limitations. The choice depends on how you use your files since it ...