About LEADTOOLS Recognition SDK

Build powerful document imaging and recognition into your applications.

LEADTOOLS Recognition SDK is a collection of LEADTOOLS SDK features designed to build end-to-end OCR applications within enterprise-level document automation solutions that require OCR, MICR, OMR, barcode, forms recognition and processing, PDF, print capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.

LEADTOOLS Recognition includes the LEADTOOLS OCR Engine, which powers the text and forms recognition capabilities bundled with this product.

LEADTOOLS Recognition SDK Includes:

  • OCR, MICR, OMR
    • OCR.
    • MICR.
    • OMR.
  • Barcode
    • 1D Barcode.
    • 2D Barcode.
  • Documents - Create, Load, Save, View, Edit, Convert
    • Document Framework.
    • Document Analyzer.
    • Document Editor.
    • Document Compare.
    • Document Converter.
    • Document Viewer.
    • Document Writers.
  • Speech Recognition
    • LEADTOOLS recognizes speech natively, without the need to send data to a server, converting spoken language into text.
    • Integrate speech-to-text capabilities with CDLL and .NET applications.
    • Client-side JavaScript speech recognition support using WebAssembly.
    • Save results to all supported document formats.
    • Speech recognition built into the LEADTOOLS Document Editor.
  • PDF
    • View and Convert PDF Documents as Vector with SVG.
    • Merge, Split, Convert, Linearize, and Distill PDF files.
    • Read and Extract text, bookmarks, hyperlinks, metadata, and more from PDF.
    • Convert images such as JPEG or TIFF to searchable, text-based PDF.
    • Convert images such as JPEG or TIFF to image-based PDF.
    • Convert PDF to an image format such as JPEG or TIFF.
    • Optimize PDF documents with LEADTOOLS PDF Optimizer.
    • Capture print jobs and convert to PDF from any application.
    • Compress image-based PDF files.
  • Bitonal and Color Image Processing
    • Document image processing and pre-recognition cleanup.
    • General image processing.
    • Image segmentation.
    • Imaging common dialogs.
  • Image Display and Annotation
    • Image Viewers.
    • HTML5/JavaScript Viewers.
    • Image annotation and mark up.
    • Enhanced bitonal image display.
  • Virtual Printer, Image Capture, and Scanning
    • Virtual Printer driver to capture print jobs from any application.
    • Acquire images and control TWAIN devices and scanners.
    • HTML5/JavaScript Web Scanning with TWAIN or SANE.
    • Optimize scanning with LEADTOOLS Fast TWAIN acquisition.
    • Acquire images and control SANE devices and scanners.
    • Acquire images and control WIA devices and scanners.
    • Capture images from the screen.
    • Print images to Windows printers.
  • Image Load, Save, Conversion, and Compression
    • Load, save, and convert more than 165 raster image and document formats, including:
      • JPEG, JPEG 2000, TIFF, PDF, DOC/DOCX, SVG and more.
    • Industry-standard and proprietary compression and decompression, including:
      • JPEG, JPEG 2000, JPEG-XR, JBIG & JBIG2, CCITT, CCITT G3 and CCITT G4, ABIC, LZW, RLE and PackBits, ZIPLIB, LEAD CMP, LEAD CMW, LEAD ABC.
    • Load, edit, save, and convert vector file formats.
    • Create document formats including searchable PDF, XPS, and DOCX.
    • Load, save, and convert both raster image and searchable PDF files.
    • Load, save, and modify image metadata.
    • OCR output document formats, including searchable PDF, XPS, and DOC.
    • SVG creation and conversion.
    • EMF creation and conversion.
    • Archive files and data to CD, DVD, and ISO files.
    • JPIP.
    • High-level image compression optimizer to automatically optimize bit depth and compression settings.
    • Imaging common dialogs.
    • Mixed Raster Content (MRC).
  • LEADTOOLS Recognition Includes Technology from
    • LEADTOOLS Recognition SDK.
  • LEADTOOLS Recognition can be Upgraded to Add Specialized Technology
    • The LEADTOOLS Recognition is the base SDK for other more advanced LEADTOOLS products. These more advanced products include all of the technology contained in the LEADTOOLS Recognition product and add supplementary advanced and/or specialized technology.
      • LEADTOOLS Forms SDK.
      • LEADTOOLS Document Suite SDK.
    • Add Multimedia Technology to Applications
      • LEADTOOLS Multimedia SDK.
  • Supported Platforms and Programming Interfaces
    • C Windows API - C/C++, Java
    • .NET
      • C#, VB, C++/CLI, XAML.
      • WinForms, WPF, .NET, Xamarin, UWP.
    • Web Services - JSON, WebAPI, SOAP, RESTful.
    • iOS & macOS - Objective-C, Swift, Xamarin, .NET.
    • Android - Java, Xamarin.
    • Linux - Java & C/C++, .NET.
    • Python.
  • Support and Documentation
    • Source code for many demo projects to help jump-start your development.
    • Comprehensive documentation for every function, method, property, and event and various "How To Use" topics.
    • Free technical support.