LEADTOOLS provides fast and accurate Optical Character Recognition SDK technology for C/C++, C# and VB.NET developers. Leverage LEADTOOLS' high level OCR toolkit to rapidly develop robust, high-performance recognition applications which incorporate features and benefits such as extracting text from scanned documents, saving time and money over manual data entry, and converting images to text-searchable formats such as PDF, PDF/A, XPS and Microsoft Word.
With LEADTOOLS' extensive support for over thirty character sets, programmers can expand their customer base by providing the same solution for Latin, Cyrillic, East Asian and Arabic languages.
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Overview of LEADTOOLS OCR SDK Technology
- OCR is available as C DLL, .NET classes, WCF services and WF activities
- Multithreaded support for running OCR in high performance, server-based applications hosted in Windows services, Web services and Windows WF hosted applications
- 32 and 64 bit OCR binaries
- Broad OCR language character set support including East Asian and Arabic
- Full page and zonal OCR
- OCR integrates seamlessly with Forms Recognition and Processing SDK technology
- Built-in and custom spelling dictionaries to improve OCR results
- Manually or automatically (using LEAD's AutoZone technology) segment source images into text, image and table OCR zones
- Save OCR output to memory or any of over 40 formats including text searchable PDF, PDF/A, Word and XML
- Multiple interchangeable OCR engines
- Powerful document image cleanup and preprocessing functions to improve OCR results of scanned images
TIFF to Searchable PDF in Three Lines of Code
The LEADTOOLS OCR SDK provides a high level programming interface which allows developers to create complex recognition applications in record time. For example, with the AutoRecognizeManager, developers can convert any of 150+ image formats into a text-searchable format such as PDF or DOC in as little as three lines of code!

Other LEADTOOLS SDK Technologies Related to OCR
LEADTOOLS SDK Products that Include OCR SDK Technology
OCR Product Comparison Chart
Hover over each product for a description. Click for more details.
The LEADTOOLS Recognition Imaging SDK includes everything a developer needs to create solutions to OCR document images and process form images. Some of the features included are OCR with text searchable PDF output, MICR, forms recognition and processing, image processing to improve recognition performance, and full barcode support.
The LEADTOOLS Document Imaging Suite SDK is the most comprehensive document imaging SDK available. Some of the features included are OCR with text searchable PDF output, MICR, forms recognition and processing, image processing to improve recognition performance, full barcode support, EMF to document format conversion, printer output capture and comprehensive PDF support.
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