Transparent backgrounds for the products make more sense since they would make things look cohesive, as opposed to the images awkwardly ... only your first download is free. For your subsequent ...

These are basically free desktop applications that allow you to remove the background of a photo and make it transparent. You can also find some free online photo background remover that you can ...

The background of the page is visible through the transparent areas of the photo, which blends it in better. Creating this effect can be done for free using the Pixlr online photo editor.