📖 How it works
This tool analyzes selectable PDF text locally on the TDH processing server. For scanned PDFs, run OCR PDF first.
PDF Keyword Extractor
Find the most frequent meaningful keywords and their document frequency share.
◉ Free🧠 Local Smart Analysis🚫 No invented PDF facts
🔑 Analyze PDF
🧠 Transparent smart processing
These tools use extractive ranking, document retrieval, font structure and pattern analysis. They do not pretend to be a generative chatbot and do not invent facts that are not in the PDF.
💡 Tip
Clean, searchable PDFs give the best results. Very long files are limited by the current free-server page cap.