Great free option to Paint.NET across platforms
Great option to other image editors and image creating software. It has a simple and intuitive user interface, yet supports both layers and 3D objects. Functional across all major OS. It is free, as in open source. It imports .PDN files created with Paint.NET without issues.
๐ Pros:
Simple and intuitive user interface|Cross-platform compatibility|Completely free and open source|Imports .pdn files creted in paint.net|Supports import and export of many file formats|Design layers|3d models
๐ Cons:
Cannot export .pdn files for paint.net|Loading and saving files in windows a bit clunky