Change Picture Background

I need you to: 1. Go through our website. 2. Download every picture with white background. 3. Change from white background to another color. 4. Save (same file name). 5. Zip everything 6. Email a zip file with proper background to me. There is plenty. 190 product pictures and about 20 more or less category pictures. I want you to change all of them but you give me a price for 10. Not that many but a great opportunity to build back log and it's always good to discover new talent.