A simple project to demo how to use python ocr lib to recognize text in pdf file

1. Install tesseract(on Windows)

• wiki url
• donwload url
• Install the downloaded binary file.
• Install the python lib:

  pip install pytesseract

• Set env path:
  • add "C:/Program Files/Tesseract-OCR" to PATH
• test installation:

  tesseract --version

• create a "tessdata" folder

  d:
  md tessdata

• set env virable:

  virable name: TESSDATA_PREFIX
  virable value: D:/tessdata

• download language data for tesseract:

  d:
  cd tessdata
  wget https://github.com/tesseract-ocr/tessdata/raw/main/chi_sim.traineddata

2. Install poppler(on Windows)

• wiki url
• donwload url
• extract the downloaded file to "D:/tools/poppler/"
• Set env path:
  • add "D:/tools/poppler/Release-24.07.0-0/poppler-24.07.0/Library/bin" to PATH
• test installation:

  pdftoppm -v

3. Install required python libs: -

   pip install pdf2image pillow