<p>OCR Foreign Language PDFs with Python and KNIME (with Tesseract and PDFium)<br><br>This workflow shows you how to OCR a Foreign Language using Python and KNIME. If the desired language does not show up in the drop-down when configuring the OCR Component, additional languages can be set by tweaking the script.<br></p><p><strong>Conda is needed on the machine</strong> and needs to be set up according to the "Prerequisites" section in this documentation (under Preferences - KNIME - Conda).<br><br>For portability, the Conda Environment Propagation node sets up the environment, so it should be <strong>not necessary</strong> to install the following environment. The commands are stated for sake of completeness, in case a workaround without the CEP node is being created:</p><ul><li><p>Linux: conda create -n knime_ocr_tess_pdfium -c knime -c conda-forge --strict-channel-priority python=3.11 knime-python-scripting=5.8 pypdfium2 opencv pytesseract tesseract pillow numpy pandas</p></li><li><p>Windows: conda create -n knime_ocr_tess_pdfium -c knime -c conda-forge -c pypdfium2-team -c bblanchon --strict-channel-priority python=3.11 knime-python-scripting=5.8 pypdfium2-team::pypdfium2_helpers opencv pytesseract tesseract pillow numpy pandas</p></li></ul><p><br>Note: If any language other than English is selected, the <strong>workflow will</strong> <strong>download Tesseract's appropriate language</strong> files and store them within the workflow folder under /data/tessdata/</p><p></p><p>This workflow is based on this one: https://hub.knime.com/s/hDBtIjjK900pPNaK</p>