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Online services for Optical Character Recognition (OCR) conversion are quickly gaining popularity for a number of reasons. Firstly, they are very convenient for small OCR tasks since they are easy to operate with and can be used from any computer with Internet access.
Second, these services offer very good accuracy and, unlike OCR software, are sometimes available for free. As a matter of fact, some online services use the same technology as expensive desktop applications.
Let’s have a look at some of the most popular OCR services online:
Free Online OCR uses highly accurate technology developed by its owners, SmartSoft. The service is completely free of charge and recognizes all printed fonts. Users may upload files of the following formats: PDF, GIF, BMP, JPEG, TIFF, and PNG. The document can be converted to a Word, PDF, TXT, or RTF file. Free Online OCR supports images with low resolution and automatically rotates the images if they don’t have the proper orientation. The result documents retain the layout of their source. No registration is required. Free Online OCR is available at http://free-online-ocr.com
Online OCR is powered by the technology found in Nuance Omnipage. Although the service claims to be free, it operates with a credit system where users are given a limited number of credits and are requested to purchase additional credits after they have used up the initial bonus. The service recognizes text in 32 languages and accepts files in TIF/TIFF JPEG/JPG, BMP, PCX, PNG, GIF, and PDF which can be converted to PDF, DOC, XLS, RTF, HTML and TXT. Available at http://www.onlineocr.net
OCR Online uses technology from ABBYY FineReader. The service is free and can recognize 153 languages and rebuilds the structure of the original document. Users may upload files of up to 10mb and convert them to DOC, PD, RTF or TXT. There is a limitation of 100 uploads per day. OCR Online can be accessed at http://www.ocronline.com
Free OCR uses the Tesseract OCR engine. Free of charge, the service recognizes 29 languages and accepts files of up to 2mb. Users can upload JPG, GIF, TIFF BMP, and PDF format. The results are available in plain text only. Conversions are limited to 10 per hour. Free OCR is available at http://www.free-ocr.com.
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