A friend is really into photography and looking for a program to manipulate photos, such as turning them from colour to black/white, enhancement and so on. I know nothing about photography, but the programs are very expensive. There are a number of free ones out there and I was wondering if anyone could suggest a good one. Thanks so much!
try paint.net for a cheap alternative to Photoshop. It doesn't have the same higher-level capabilities, but I used it to convert a photo of a statue into my avatar.