System Dependencies

uv must already be installed because this skill is executed with uv run, and uv installs the Python dependencies declared in src/main.py.
ffmpeg is needed for tts because the speech output is normalized and written as an .mp3 file through ffmpeg.
tesseract is needed for ocr because it performs the actual optical character recognition on scanned page images.
pdfimages is also needed for ocr because it extracts page images from PDFs before those images are passed to tesseract; pdfimages comes from poppler.
pandoc is optional for convert because it can convert between many document formats when text-based conversion is possible.
libreoffice is an optional alternative to pandoc for convert because it can handle document conversions that pandoc may not support well.

File Access And Network Behavior

This skill operates on the file paths provided by the caller. It can read from and write to any host path the caller supplies; it is not limited to the OpenClaw workspace.
The /root/.openclaw/workspace/... paths in the command examples show where the skill entrypoint lives. They do not restrict which files the skill can access.
The tts command uses edge-tts, which sends the input text to an external text-to-speech service over the network to generate audio.
Do not use tts with sensitive or private text unless you are comfortable sending that text off-host.
All other commands run locally on the host, subject to the optional local binaries documented below.