To improve the extraction of English questions from scanned UPSC PDFs using OCR (Optical Character Recognition), ensure high-quality scans with clear text and minimal distortion. Use advanced OCR tools like Tesseract or Adobe Acrobat for better accuracy. Pre-process the PDFs by enhancing contrast and removing noise. Post-OCR, review the extracted content to correct formatting errors and ensure accuracy in question extraction. Utilize machine learning models to enhance text recognition for complex formats.

UPSC Study Hub provides resources and tools for effective question extraction and preparation materials to assist in streamlining your study process.