How to OCR PDFs for Free
How to OCR PDFs on Windows (for free) I recently needed to run OCR on a 538-page scanned Cyrillic PDF. No budget, no subscriptions, just a Windows machine and some patience. Here's what worked. The tool stack: The winning combination is Tesseract (open-source OCR engine) wrapped by OCRmyPDF (a Python tool that handles the full pipeline: takes a scanned PDF in, runs Tesseract page by page, and spits out a searchable PDF). Together they handle deskewing, preprocessing, and text layer embedding without you needing to split pages into images manually. There are fancier options. ABBYY FineReader is the commercial gold standard for Cyrillic and will beat Tesseract on accuracy, especially at low DPI. Google Cloud Vision has a free tier of 1,000 pages/month and handles degraded scans better than anything else. But if you want something fully local and free with no page limits, Tesseract + OCRmyPDF is the move. Setup 1. Install Python Download from python.org/downloads. During installation,...