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DocList API OCR Demo. Free online OCR. Convert Scanned PDF Documents to Text with Google OCR. If you have bunch of scanned PDF files sitting on your hard drive and no OCR software to convert them into text, here’s what you can do to recognize text from PDF files with Google OCR.

Convert Scanned PDF Documents to Text with Google OCR

There are two types of PDF documents – those created by sending Office files, images, etc. to an Acrobat like PDF printer and those created by scanning physical paper like pages of a book, legal documents, etc. Google could always index PDF documents created by conversion but now they also recognize text from PDFs that are generated by scanning paper documents using OCR software.

This is a scanned document and this is the html text view of that same document converted by Google. Since scanned PDFs are nothing but images, don’t be surprised if Google adds a "search by text" function to their Image Search engine similar to OneNote or EverNote. That will surely be huge. Create a folder in your website (say and upload all the PDF images to that folder. Mouse Cam - Instructables Make Cool How To and DIY [category: te. When you get your mouse, open it.

Mouse Cam - Instructables Make Cool How To and DIY [category: te

The optical sensor can be distinguished by it being just above the lens. It should have eight pins, and have a sort of sun logo on it, and also the inscription "A2610". In that case, it is the Agilent ADNS2610 optical mouse sensor, the same as used by spritemods, and (later) by me. If it has more than eight legs, or a different part number, these instructions might not work. Here, I have removed the controller chip and connected two links so that the signals from the sensor pass straight through. The three pushbutton switches were removed to be used in some other project.

Linux OCR: A review of free optical character recognition softwa. Tesseract-ocr - Google Code. Tesseract is probably the most accurate open source OCR engine available.

tesseract-ocr - Google Code

Combined with the Leptonica Image Processing Library it can read a wide variety of image formats and convert them to text in over 60 languages. It was one of the top 3 engines in the 1995 UNLV Accuracy test. Between 1995 and 2006 it had little work done on it, but since then it has been improved extensively by Google. It is released under the Apache License 2.0. ReadMe - Installation and usage information. Tesseract works on Linux, Windows (with VC++ Express or CygWin) and Mac OSX. If you're interested in supporting other platforms or languages, please get in touch with Ray Smith or the Developers. With the discontinuation of downloads at, new source downloads will be posted to GoogleDrive. Version 3.03 release candidate is now available (source only so far) for download and contains many new features. PDF output. Version 3.03 ships with recent Linux distributions such as Ubuntu 14.04.

Ocropus - Google Code. OCRopus™ is an OCR system written in Python, NumPy, and SciPy focusing on the use of large scale machine learning for addressing problems in document analysis.

ocropus - Google Code

OCRopus 0.7 is the latest release of the OCRopus OCR system. It features a new text line recognizer based on recurrent neural networks (and does not require language modeling), models for both Latin script and Fraktur, and some new tools for ground truth labeling. Installation: To install, use: $ hg clone -r ocropus-0.7 $ cd ocropus/ocropy $ sudo apt-get install $(cat PACKAGES) $ python download_models $ sudo python install $ . /run-test System Requirements: The recommended system configuration is Ubuntu 12.10 (64 bit) with at least 4 Gbytes of memory and a fast processor. Limitations: Primary limitations right now are that performance on multi-column documents and documents containing images isn't very good.

Note that these results are without a language model or dictionary and without post-processing.