Edit PDFs using natural-language instructions. Point it at a page and describe what to change. For structural PDF work (merge, split, forms, watermarks, creation), see the pdf skill; for text extraction from scans, see ocr-and-documents.
Prerequisites
# Install with uv (recommended — already available in Hermes)
uv pip install nano-pdf
# Or with pip
pip install nano-pdf
# Change a title on page 1
nano-pdf edit deck.pdf 1"Change the title to 'Q3 Results' and fix the typo in the subtitle"# Update a date on a specific page
nano-pdf edit report.pdf 3"Update the date from January to February 2026"# Fix content
nano-pdf edit contract.pdf 2"Change the client name from 'Acme Corp' to 'Acme Industries'"
Notes
Page numbers may be 0-based or 1-based depending on version — if the edit hits the wrong page, retry with ±1
Always verify the output PDF after editing (use read_file to check file size, or open it)
The tool uses an LLM under the hood — requires an API key (check nano-pdf --help for config)
Works well for text changes; complex layout modifications may need a different approach