Pinta Alternatives for Linux

GIMP is a free program for such photo retouching, image composition and image authoring. Essentially it's the closest thing to Photoshop you can get for free.

Krita is a professional Free and open source (FOSS) painting program. It is made by artists that want to see affordable art tools for everyone withith concept art, texture and matte painters, illustrations and comics.

MyPaint is a fast painting program with an emphasis on full-screen use. It lets you focus on the art instead of the program. You work on your canvas with minimum distractions, bringing up the interface only when you need it.

This application is a basic image editor, similar to Microsoft Paint, but aiming at the GNOME desktop.

Tux Paint is a free, award-winning drawing program for children ages 3 to 12 (for example, preschool and K-6). Tux Paint is used in schools around the world as a computer literacy drawing activity.

KolourPaint is a simple painting program to quickly create raster images. It is useful as a touch-up tool and for simple image editing tasks.

Pixelitor is a cross-platform raster graphics editor written in Java. It supports image filters, drawing, layers, multiple undo, etc. Currently its main strength lies in the more than 70 image filters and color adjustments, some of which are unique.

You can use it to view your photographs and improve them. Showfoto is the standalone image editor of the digiKam project.

AzPainter is a full color painting program for linux. It's a lightweight tool with tablet pressure support, and provides basic functions such as selection, layers, filters. you can use it for painting, image editing, or pixel art making.

mtPaint is a painting program which Mark Tyler developed from scratch so he could easily create pixel art and manipulate digital photos.