![]() After marking those regions with the rectangle, we will crop those regions one by one from the original image before feeding it to the OCR engine. Here in this step we will mark the regions of the image from where we have to extract the data. Note: Before marking regions make sure that you have preprocessed the image for improving its quality (DPI ≥ 300, Skewness, Sharpness and Brightness should be adjusted, Thresholding etc.) Marking Regions of Image for Information Extraction Please refer to the below resources for downloading and installation instructions for Poppler.Īfter installation, any pdf can be converted to images using the below code.Īfter converting the PDF to images, the next step is to highlight the regions of the images from which we have to extract the information. ![]() Note: pdf2image uses Poppler which is a PDF rendering library based on the xpdf-3.0 code base and will not work without it. The following command can be used for installing the pdf2image library using pip installation method. Pdf2image is a python library which converts PDF to a sequence of PIL Image objects using pdftoppm library. The libraries that I used for developing this solution were pdf2image (for converting PDF to images), OpenCV (for Image pre-processing) and finally PyTesseract for OCR along with Python. ![]() I came across a similar set of problem a few days back and wanted to share with you all the approach through which I solved this problem. However there are many factors due to which most of the people want to solve this problem using Open Source Libraries. There are various tools that are available in the market that can be used to perform this task. The process of extracting information from a digital copy of invoice can be a tricky task. Wait for the tool to convert your file in a matter of seconds.Document Intelligence using Python and other open source libraries.Choose to use OCR if needed, otherwise select “convert to Word.”.Drag your file into the PDF to Text converter.PDF to Text – Convert PDF to Text Online for Free ![]() It can retrieve text and metadata from PDFs as well as merge entire files together. It can also add custom data, viewing options, and passwords to PDF files. PyPDF2 is a pure-python PDF library capable of splitting, merging together, cropping, and transforming the pages of PDF files. findall()” function of regular expressions to extract keywords. Step 2: Convert PDF file to txt format and read data. How do I extract specific text from a PDF in Python?
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