Documents and notes
PDF.ai alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
PaddlePaddle/PaddleOCRTurn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs.Open on GitHub ↗opendataloader-project/opendataloader-pdfPDF Parser for AI-ready data. Automate PDF accessibility. Open-source.Open on GitHub ↗
What you give up either way
- Polished hosted UI/branding and onboarding flows
- High-availability, horizontal scaling and enterprise SLAs
- Any proprietary models or vendor-managed optimizations
- Built-in payment, team management, and analytics dashboards
An open-source project doing the core job proves a replacement is possible. It does not prove it matches PDF.ai, and it does not prove anyone has run it for a month. How we decide.


