I write children's books and would like to have my photos converted to cartoons like characters for my books. Where can I download a program for commercial use without restrictions?
There are plenty of products in the Software Informer's database that you can use. However, the information that you are looking for is available only by contacting the developer. You can check each program's review page for additional information as well as screenshots and videos about it. If you want to include the resulted pictures into your books, I suggest you take a look at Cartoon Story Maker or Cartoon Maker. Both of them are freeware.