pdfmux

PDF extraction that audits its own output — and certifies any other extractor's, catching pages they silently dropped. Verify signed manifests offline: free, MIT, no account. 0.903 on opendataloader-bench, #2 of 8 engines. 7-tool MCP server. Maintained by NameetP on GitHub, where it has earned 80 stars from the community.

It's actively developed around llm, mcp, ocr, and is a solid reference for anyone building with these tools.