[ ソース: ocrmypdf ]
パッケージ: ocrmypdf (8.0.1+dfsg-1)
add an OCR text layer to PDF files
OCRmyPDF generates a searchable PDF/A file from a regular PDF containing only images, allowing it to be searched.
It uses the Tesseract OCR engine and so supports all the languages that Tesseract does.
Some other main features:
* 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 rendering vector information
* Keeps file size about the same
* If requested deskews and/or cleans the image before performing OCR
* Validates input and output files
* Provides debug mode to enable easy verification of the OCR results
* Processes pages in parallel when more than one CPU core is
available
* Battle-tested on thousands of PDFs, a test suite and continuous
integration.
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- sug: img2pdf
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