Photoshop File Format Jun 2026

For each layer: a (fixed-length, 70+ bytes) containing:

This section is the heart of PSD’s capability. It begins with a (4 bytes), followed by: photoshop file format

(Deducting one point for massive file sizes and proprietary restrictions). For each layer: a (fixed-length, 70+ bytes) containing:

A layer of solid color will compress extremely well with RLE (to ~0.1% of original size), while photographic layers benefit more from ZIP with prediction. For each layer: a (fixed-length