Install ocrmypdf by entering the following commands in the terminal:
sudo apt update sudo apt install ocrmypdf
Description:
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.
Homepage: https://github.com/jbarlow83/OCRmyPDF
Version: 6.1.2-1ubuntu1
Section: universe/graphics