GoldSRC Steam Background Image Converter
Created by Jonny (Jpe)
This tool is based on the How to Make HD 1080p Backgrounds for HL1/Goldsrc Games, for use whilst making my mod Retrograde.
The benefit of this is that you can use any file format your browser supports, bust most importantly: bmp, jpg, png, and even SVG.
For now, the tool is set to output at 1920 x 1080, in sets of 256 x 256px, uncompressed 24-bit TGA images.
Your input images should be 1920 x 1080px.
Once you've loaded the image click each of the images to download each tga.