Creating favicon.ico

Problem

You want to create a favicon.ico from Unix.

Solution

1. Open your image with GIMP
2. If your image is not a square then resize the canvas with GIMP
3. Scale the image to 16×16 pixel (Image, Scale image)
4. Save as favicon.pnm or favicon.ppm with raw encoding
5. Close GIMP

Example

Then to convert favicon.pnm or favicon.ppm using the command line utility ppmtowinicon:

$ ppmtowinicon -output favicon.ico favicon.pnm

Or

$ ppmtowinicon -output favicon.ico favicon.ppm

Reference

Kewl tip on creating a favicon.ico with ppmtowinico – thanks to linuxproblem.org. 🙂

http://www.linuxproblem.org/art_19.html