A command-line tool that adds an OCR text layer to scanned PDF files, making them searchable and copy-pasteable.
OCRmyPDF is a command-line tool that adds optical character recognition (OCR) capabilities to scanned PDF files, converting them into searchable and copy-pasteable documents. It solves the problem of inaccessible scanned documents by accurately embedding text layers while preserving original image quality and producing standardized PDF/A files.
Developers, system administrators, and document archivists who need to batch-process scanned PDFs through automation scripts or command-line workflows. It's particularly valuable for organizations digitizing paper archives or building document management systems.
Developers choose OCRmyPDF because it produces reliable, standards-compliant output where other tools fail—it accurately places text, maintains image quality, validates files, and handles multilingual documents. Its battle-tested performance on millions of PDFs and plugin architecture make it the most robust open-source PDF OCR solution available.
OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched
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Positions OCR text accurately below the original image, ensuring reliable copy-paste functionality as emphasized in the README's key features.
Generates PDF/A files by default, making output suitable for long-term storage and meeting document preservation standards, a core part of its value proposition.
Supports over 100 languages via Tesseract, with the ability to process multiple languages per document, as shown in the installation examples.
Distributes work across all CPU cores by default, enabling fast batch processing of large documents, which is highlighted in the main features.
Offers a plugin interface for alternative OCR engines like EasyOCR and Apple Vision, allowing customization beyond the default Tesseract, as noted in the plugins section.
Requires separate installation of Tesseract OCR and Ghostscript, adding setup complexity compared to all-in-one solutions, as admitted in the requirements section.
Purely command-line based, which can be a barrier for non-technical users seeking a point-and-click tool for simple OCR tasks.
While plugins exist, the default engine is Tesseract, which may underperform on certain fonts or low-quality scans compared to commercial OCR services, limiting out-of-the-box accuracy.