GIF

GIF is a graphic format. From about 2004 year, code for LZW compressing (for GIF) is free. So it's free.

To show GIF image, animated or not, you can use AnimatedGif library. It gives unit which self-registers in Free Pascal classes, and also in Lazarus' TPicture:

initialization

  //Free Pascal Image
  ImageHandlers.RegisterImageReader ('Animated GIF', TAnimatedGif.GetFileExtensions, TFPReaderGIF);

  //Lazarus Picture
  TPicture.RegisterFileFormat(TAnimatedGif.GetFileExtensions,'Animated GIF', TAnimatedGif);

From the Free Pascal wiki, page "GIF", as it stood on 2020-02-16 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.