Photo Collage Maker

Photo Collage Maker is a desktop photo layout composer, border and mask styler,
and high-resolution image and print-ready PDF exporter for Linux.
An independent Linux desktop alternative to CollageIt for creating photo collages
with customizable grids, rounded alpha masks, gradient backgrounds, and print PDFs.

Key Features:
- 12 Mathematical Layout Templates: Compose 2 to 20 real photos into 2x1, 2x2, 3x2,
3x3, 4x4, 5x4 Gallery Grid, Hero Left 1+3, Hero Top 1+4, Center Spotlight,
3-Column Masonry, Polaroid Tilted Cards, and Cinema Filmstrip templates with live
slot reordering and interactive per-cell zoom and pan crop offsets.
- Canvas Presets, Masks & Typography: Target 1080x1080, 1920x1080, 1080x1920,
4x6 Print (1800x1200), or A4 300-DPI (2480x3508) canvases with outer margin,
cell gutter, rounded corner alpha masks, Gaussian drop shadows, solid or 2-stop
gradient backdrops, and customizable title/caption banners.
- High-Res Image, Print PDF & Project JSON: Export full-resolution PNG, JPEG,
and WebP images, generate multi-DPI print-ready A4/Letter/4x6 PDF files, and
save or reload .collage.json layout project files.

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by PearlMountain Limited or CollageIt.