LEADTOOLS Recognition SDK

LEADTOOLSDocument Recognition Tools.NETJavaJavaScriptObjective-C LibraryWindows DLLWindows UWP ControlC++ / MFC Class Library
Version v23 (Mar 5, 2024)

Build recognition applications with OCR, barcode, forms, and PDF processing.

  • Combine OCR, MICR, OMR, barcode, and forms recognition features.
  • Handle PDF, annotation, scanning, image viewing, and print capture.
  • Build document automation applications with recognition and conversion libraries.
LEADTOOLS logo

Prices from:

Loading...
Available individuallyOur Price
LEADTOOLS Recognition SDKLoading
Build powerful document imaging and recognition into your applications.
LEADTOOLS Recognition SDK is a recognition SDK for building document automation applications that identify, extract, view, convert, and manage document content. It combines OCR, MICR, OMR, barcode, forms recognition, PDF processing, annotation, scanning, speech recognition, and image processing capabilities for end-to-end recognition workflows.

OCR, MICR, And OMR Recognition

Provides OCR, which stands for optical character recognition, plus MICR, which stands for magnetic ink character recognition, and OMR, which stands for optical mark recognition. These libraries help applications identify printed text, bank check characters, and marked responses from scanned documents.

Barcode Reading Capabilities

Includes 1D and 2D barcode recognition for applications that need to capture encoded data from scanned pages, labels, forms, and images. This supports workflows where barcode data is part of indexing, routing, validation, or document processing tasks.

Forms Recognition And Processing

Uses image processing and document feature detection to recognize and extract data from scanned or faxed form images. This helps developers build software for structured document workflows where forms need to be interpreted and processed automatically.

Document Framework And Editing

Includes document framework technologies for creating, loading, saving, viewing, editing, converting, comparing, and writing documents. This gives recognition-driven applications the ability to move from capture and extraction into review, correction, and output generation within the same SDK.

Speech Recognition Integration

Provides native speech recognition that converts spoken language into text without sending data to a server. It supports CDLL and .NET applications, client-side JavaScript through WebAssembly, saving results to supported document formats, and integration with the document editor.

PDF Processing Features

Handles PDF workflows such as merging, splitting, converting, linearizing, distilling, optimizing, extracting text and metadata, converting images to searchable or image-based PDF, converting PDF to image formats, and capturing print jobs to PDF.

Image Processing And Cleanup

Includes document image processing, pre-recognition cleanup, general image processing, and image segmentation. These capabilities help improve source quality before recognition and support applications that need better visual preparation for extraction, viewing, and document automation tasks.

Image Display And Annotation

Provides image viewers, HTML5 and JavaScript viewers, annotation and markup support, and enhanced bitonal image display. Applications can present recognized content for review and let users inspect, navigate, and mark up images during verification workflows.

Scanning, Capture, And Virtual Printing

Supports virtual printer capture, TWAIN, SANE, and WIA acquisition, HTML5 web scanning, fast TWAIN acquisition, screen capture, and printing. This allows applications to bring paper and on-screen content directly into recognition and processing workflows.

Format Conversion And Output

Loads, saves, and converts more than 165 raster image and document formats, supports multiple compression methods, handles metadata, works with vector formats, and creates output such as searchable PDF, XPS, and DOCX for recognized document workflows.

Product Compatibility

Review the details below to ensure this product is supported within your environment.

Component Type

  • .NET
  • Java
  • JavaScript
  • Objective-C Library
  • C++ / MFC Class Library
  • Windows DLL
  • Windows UWP Control

.NET Version

  • .NET 7 STS
  • .NET 6 LTS
  • .NET 5 / .NET Core 3.1
  • .NET 4.8 or earlier

.NET Platform

  • .NET Assembly
  • .NET Class
  • .NET MAUI
  • .NET Web Service
  • .NET WinForms
  • .NET WPF
  • ASP.NET AJAX
  • Xamarin Extension

JavaScript Platform

  • Angular
  • React
  • Vanilla JavaScript
  • Vue.js

Java Platform

  • Java Class

IDE Support

  • Eclipse
  • Visual Studio
  • Xcode