lovstudio:pdf2png

Convert PDF files to a single vertically concatenated PNG image using macOS native CoreGraphics.

Part of lovstudio/skills — by lovstudio.ai

Install

npx skills add lovstudio/skills --skill lovstudio:pdf2png

Requires: macOS, pip install pyobjc-framework-Quartz

Usage

bash pdf2png.sh input.pdf           # → input.png
bash pdf2png.sh a.pdf b.pdf c.pdf   # batch mode

How It Works

┌─────────┐     CoreGraphics      ┌─────────┐
│  PDF     │  ──── render ────►   │  Page 1  │
│ (N pages)│     2x scale         │  Page 2  │
│          │                      │  ...     │
│          │                      │  Page N  │
└─────────┘                       └────┬─────┘
                                       │ vertical append
                                       ▼
                                  ┌─────────┐
                                  │ one.png  │
                                  └─────────┘

Why Not pdftoppm + ImageMagick?

	pdftoppm + magick	CoreGraphics
27MB / 20 pages	~3 minutes	~3 seconds
Dependencies	Homebrew (poppler, imagemagick)	None (macOS built-in)
Retina quality	Manual DPI flag	Native 2x scale

Also Available As

• Finder Quick Action: Right-click any PDF → "PDF to PNG". See lovstudio/mac-pdf2png.

License

MIT