BMP -> GD image?

Hello, I wanted to know if anyone has a good way to convert windows bitmaps into png, jpeg, gif or something else that GD2 can work with? The reason for this is that I wanna be able to colorize them in a special way which GD is great at... Just that GD can't handle BMPs so... My first idea was to simply convert the formats, but turns out that's not waay to easy... I only tried the 8bit format which I nowdays think is VERY wierd... The palette indexing isn't logical it seems... If anyone can explain the file format, I will just write my own PHP script for this task... Help anyone? -- // DvDmanDT MSN: dvdmandt@hotmail.com Mail: dvdmandt@telia.com