Before diving into the "90MB" claim, let’s establish the baseline.
The sheer number of features means a lossless compression of 1.6 GB down to 90 MB is mathematically impossible without removing or destroying core functionality.
Conclusion: None of the three provided a genuine, fully functional Photoshop CC 2019 at 90MB.
| Software | Size | Feature set | |----------|------|--------------| | Photopea (online) | 0 MB (runs in browser) | Amazing: layers, PSD support, filters | | GIMP (portable) | ~90 MB | Full image editing, plugins available | | Paint.NET | ~10 MB | Fast, intuitive, limited compared to PS | | Krita | ~120 MB | Great for digital painting |
Photopea, in particular, runs in your browser and mimics Photoshop’s interface and keyboard shortcuts almost perfectly – all without installing anything.