Any file claiming to be the full program "highly compressed" into a 100MB package is almost certainly malware, a virus, or a "Rickroll" prank

A highly compressed version is typically a "Portable" or "Lite" edition of the software. To get the file size down to 100MB, developers and modders usually:

These are installers that may or may not give you a broken version of Photoshop, but will forcefully install unwanted browser extensions, search hijackers, and bloatware onto your operating system.

Old Photoshop 7.0 or CS2 (which is no longer supported) might fit into 100–200MB after compression. But you lose modern features like content-aware fill, 3D editing, and new camera RAW support.

Photoshop Highly Compressed 100MB Free Download: Myth vs. Reality

For users needing 100MB footprint, runs entirely in a browser tab and caches less than 50MB. No installation required.

This sheer size is why the promise of a 100MB version is so appealing. It offers the prospect of getting this full software suite without the corresponding storage, hardware, or financial commitment.

Photopea features a user interface nearly identical to Photoshop. It supports .psd files, layers, masks, smart objects, and keyboard shortcuts without requiring any installation. 2. GIMP (GNU Image Manipulation Program) Size: ~300 MB installer Best For: Powerful, offline desktop editing.