a3-collage

a3-collage is a lightweight reference board built with Raylib. Paste images, draw arrows, shapes and strokes on an infinite canvas, and export to PNG.

Features

• Paste images from clipboard
• Infinite canvas with zoom and pan
• Draw lines, rectangles, circles, arrows and freehand strokes
• Eraser tool
• Undo support
• Grid modes (lines, dots, off)
• Custom .a3co save/load format
• Export to PNG

Keyboard Shortcuts

Key	Action
Q	Toggle Pencil (freehand line)
R	Toggle Rectangle
C	Toggle Circle / Oval
A	Toggle Arrow
E	Toggle Eraser
S	Toggle Crop (copies selected area)
T	Insert text
ESC	Cancel current tool / close text mode
Ctrl + D	Duplicate selected images
Ctrl + C	Copy selected images
Ctrl + V	Paste images
Ctrl + Z	Undo
Mouse Wheel	Zoom canvas
Ctrl + Mouse Wheel	Adjust tool thickness / eraser size
X / Delete	Delete selected images

Building

Requires Raylib and MinGW-w64.

build.bat

Run a3-collage.exe after compilation.

License

MIT