Image retouching

When you scan in your drawings they may need a bit of cleaning up and adjusting. There are a lot of resources online to retouch images but my 2 recommendations are:

Polar with a similar interface to Lightroom.

Photoshop online . A simplified version easier to use. I am not crazy about the fact that does not include the controlers but gives you options to chose from, but for quick changes it is probably good. The only condition is that the images to upload need to be jpg.