add an OCR text layer to scanned PDF files
OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched or copy+pasted. - Generates a searchable PDF/A file from a regular PDF - Places OCR text accurately below the image to ease copy / paste - Keeps the exact resolution of the original embedded images - When possible, inserts OCR information as a "lossless" operation without disrupting any other content - Optimizes PDF images, often producing files smaller than the input file - If requested, deskews and/or cleans the image before performing OCR - Validates input and output files - Distributes work across all available CPU cores - Uses Tesseract OCR engine to recognize more than 100 languages (use "pkg_info -Q tesseract" to locate language packs to install) - Keeps your private data private - Scales properly to handle files with thousands of pages - Battle-tested on millions of PDFs ocrmypdf # it's a scriptable command line program -l eng+fra # it supports multiple languages --rotate-pages # it can fix pages that are misrotated --deskew # it can deskew crooked PDFs! --title "My PDF" # it can change output metadata --jobs 4 # it uses multiple cores by default --output-type pdfa # it produces PDF/A by default input_scanned.pdf # takes PDF input (or images) output_searchable.pdf # produces validated PDF output
Homepage: https://ocrmypdf.readthedocs.io/