OCRmyPDF is an open source command line tool that specializes in adding an Optical Character Recognition (OCR) text layer to scanned PDF files to turn them into searchable, reproducible documents. Its main features include:
- Add searchable OCR text layers to scanned PDFs with copy and paste support.
- Default generation of PDF/A format, suitable for long-term document archiving.
- Supports text recognition in 39 languages, including English, German, Chinese, etc.
- Automatic correction of page skew (deskew) and rotation (rotate-pages).
- Optimize PDF file size, usually generating smaller output than the input file.
- Supports multi-core parallel processing to enhance the efficiency of large-scale document processing.
- Support functionality expansion through plug-ins, compatible with complex PDF structure.
- Automatically repair corrupted PDF files for enhanced compatibility.
This answer comes from the articleOCRmyPDF: scanned PDF into searchable text of the open source toolThe