Scan to join WeChat groupPDF Screenshot
This skill renders pages or specific regions (bounding boxes) of a PDF into PNG images. It is designed for human-agent collaboration workflows where the agent needs to show the human what it has detected (e.g., tables, figures) for verification or calibration.
Usage
Full Page Screenshot
/pdf-screenshot /path/to/doc.pdf --page 5
Saves to /tmp/pdf-screenshot/doc_page5.png (or custom path).
Cropped Region (Bounding Box)
/pdf-screenshot /path/to/doc.pdf --page 5 --bbox "72,200,540,400"
Saves to /tmp/pdf-screenshot/doc_page5_crop.png.
Bounding box format: x0, y0, x1, y1.
A default padding of 20px is added to the crop.
Custom Output Path
/pdf-screenshot /path/to/doc.pdf --page 5 --out /tmp/my_screenshot.png
Highlight Region
/pdf-screenshot doc.pdf --page 5 --highlight "72,200,540,400"
Draws a red rectangle around the specified region. Useful for visual verification without cropping.
Batch Processing
# Specific pages
/pdf-screenshot doc.pdf --pages 1,3,5 --out ./screenshots/
# All pages
/pdf-screenshot doc.pdf --all --out ./screenshots/
If --out is a directory (ends in /), files are named automatically (e.g., doc_page1.png).
Arguments
pdf_path: Path to the input PDF file.--page: Single page number (0-indexed).--pages: Comma-separated list of page numbers (e.g.1,3,5).--all: Process all pages in the document.--bbox: Optional crop bounding boxx0,y0,x1,y1.--highlight: Optional highlight bounding boxx0,y0,x1,y1(red stroke).--out: Optional output path or directory.--dpi: Rendering DPI (default 150).
Dependencies
pymupdf(fitz)