// Convert PDF files into a series of images (PNG/JPG) using ImageMagick
| name | pdf-to-images |
| description | Convert PDF files into a series of images (PNG/JPG) using ImageMagick |
Convert PDF files into a series of images using ImageMagick.
A simple yet powerful tool that converts PDF documents into individual PNG images, one per page. Useful for extracting slides from presentations, creating image previews, or processing PDF content for further analysis.
Use this skill when users:
python scripts/pdf_to_images.py "PDF_FILE" [-o OUTPUT_DIR] [-d DPI] [-f FORMAT]
Convert PDF to PNG images (default):
python scripts/pdf_to_images.py "presentation.pdf"
Specify output directory:
python scripts/pdf_to_images.py "document.pdf" -o ./output-images
High resolution output (300 DPI):
python scripts/pdf_to_images.py "document.pdf" -d 300
Output as JPEG:
python scripts/pdf_to_images.py "document.pdf" -f jpg -q 90
pdf_file (required): Path to the PDF file-o, --output: Output directory (default: same directory as PDF, with -slides suffix)-d, --dpi: Resolution in DPI (default: 150)-f, --format: Output format: png, jpg, tiff (default: png)-q, --quality: JPEG quality 1-100 (default: 85, only for jpg format)-p, --prefix: Output filename prefix (default: slide)Requires ImageMagick installed on the system:
macOS:
brew install imagemagick
Ubuntu/Debian:
sudo apt-get install imagemagick
Windows: Download from https://imagemagick.org/script/download.php
output-directory/
├── slide-00.png # Page 1
├── slide-01.png # Page 2
├── slide-02.png # Page 3
└── ...
When user requests PDF to images conversion:
Check ImageMagick availability:
which magick || which convert
Execute conversion:
python /mnt/skills/user/pdf-to-images/scripts/pdf_to_images.py \
"USER_PDF_FILE" -o /mnt/user-data/outputs -d 150
Present files to user:
present_files(["/mnt/user-data/outputs/..."])
The script uses:
magick -density {DPI} "{input.pdf}" "{output_dir}/{prefix}-%02d.{format}"
Or for older ImageMagick (v6):
convert -density {DPI} "{input.pdf}" "{output_dir}/{prefix}-%02d.{format}"
Q: Getting "convert: not authorized" error? A: Edit ImageMagick policy file to allow PDF reading:
sudo sed -i 's/rights="none" pattern="PDF"/rights="read|write" pattern="PDF"/' /etc/ImageMagick-*/policy.xml
Q: Output images are too small/large?
A: Adjust DPI with -d flag. 150 DPI is good for screen, 300 DPI for print.
Q: Conversion is slow?
A: Lower DPI reduces processing time. Try -d 100 for faster conversion.
User: "帮我把这个 PDF 拆解成图片: presentation.pdf"
Claude:
# Check ImageMagick
which magick || which convert
# Convert PDF to images
python /mnt/skills/user/pdf-to-images/scripts/pdf_to_images.py \
"presentation.pdf" \
-o ./presentation-slides \
-d 150
# Present files
present_files(["./presentation-slides/slide-00.png", ...])
v1.0 (Current)
Personal use tool. Respects PDF document copyrights.
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