This project aims to extract tables from scanned image PDFs using Optical Character Recognition. It currently depends on Ruby 1.8.7 or above, and uses ocropus, cuneiform, or tesseract for performing OCR.ĥ.
Pdfocr adds an OCR text layer to scanned PDF files, allowing them to be searched. This is an amazing open-source PDF toolbox that allows you to edit PDF files, convert them into editable text format, merge and split PDF files, add watermarks, encrypt and decrypt PDFs, and even convert PDF files into audiobooks.ĭespite having a command-line interface, it is fairly easy to use, with straightforward commands and shortcuts. PDF-TOOLBOX: Multi-purpose PDF editing tool And with its intuitive Web-based GUI and Flask-based microservice (API), It also offers a user-friendly experience that is unparalleled in the industry.ģ. Thanks to its advanced language models, pd3f offers support for multiple languages including German, English, Spanish, French, and Italian. With the ability to OCR scanned PDFs using Tesseract and extract tables with Camelot and Tabula, pd3f is a versatile tool that can handle a variety of tasks.Īs it uses Parsr, which accurately detects hierarchies of text and splits the text into words, lines, and paragraphs, pd3f-core takes it a step further by reconstructing the original continuous text, removing hyphens, new lines, and spaces with ease. Pd3f is a powerful free self-hosted PDF text extraction pipeline that utilizes state-of-the-art machine learning algorithms to reconstruct the original text. Scales properly to handle files with thousands of pages.Uses Tesseract OCR engine to recognize more than 100 languages.Distributes work across all available CPU cores.If requested, deskews and/or cleans the image before performing OCR.Optimizes PDF images, often producing files smaller than the input file.When possible, inserts OCR information as a "lossless" operation without disrupting any other content.Keeps the exact resolution of the original embedded images.Places OCR text accurately below the image to ease copy / paste.Generates a searchable PDF/A file from a regular PDF.It is already being used to scan and search millions of heavy PDF files. OCRmyPDF is a free open-source command-line tool that adds an OCR text layer to scanned PDF files, allowing them to be searched or copy-pasted. Note that most of these tools require a fair amount of knowledge on how to run command-line applications.
These alternatives can save you the cost of commercial PDF programs while still offering high-quality OCR capabilities. In this post, we present the best free and open-source PDF OCR solutions.
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