jupyter-anywidget-tesseract-pdfjs 0.0.2

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jupyter_anywidget_tesseract_pdfjs

Tesseract./ pdf.js anywidget for previewing PDF and extracting text from PDF, image, etc. in JupyterLab

Inspired by and building on @simonw's (Simon Willison) OCR tool [about], use tesseract.js in a Jupyter notebook environment via an anywidget wrapper.

Using the anywidget framework, we can essentially load Javascript and WASM models into a sidebar widget and use the widget for "side-processing" using the browser machinery.

For example, we can use the tesseract.js for OCR/text extraction on images, and pdf.js for converting PDF documents to images which can then be OCR'd using tesseract.js.

This reduces the number of Python dependencies that need to be installed on the host machine, albeit at the expense of loading resources into the browser.

I'm not much a packaging expert, so some assets are likely to be loaded from a URI; ideally, everything would be bundled into the anywidget extension.

Installation

pip install jupyter_anywidget_tesseract_pdfjs

Usage

Import the jupyter_anywidget_tesseract_pdfjs package and launch a widget:

from jupyter_anywidget_tesseract_pdfjs import tesseract_panel

t = tesseract_panel()

This loads the widget by default into a new panel using jupyterlab_sidecar.

You can then drag and drop an image file or PDF file onto the landing area or load an image or path in from a notebook code cell.