LEADTOOLS Document Suite SDK 新版本發表

Released: Jul 19, 2022

LEADTOOLS Document Suite SDK 中的更新


  • Added support for speech recognition - LEADTOOLS now recognizes speech natively, without the need to send data to a server, converting spoken language into text. Features include:
    • Integrating 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.

Released: Sep 23, 2021

v22 中的更新


What's new in the LEADTOOLS Document Engine v22

Document Editor
LEAD is proud to introduce the new LEADTOOLS Document Editor control for HTML/JavaScript development. The LEADTOOLS Document Editor control provides a word-processor like experience that can load, edit, and save PDF, DOC/DOCX, and RTF formats.

  • Zero-foot print document editing solution for HTML5/JavaScript applications.
  • Supports loading, editing, and saving formats, such as DOC/DOCX, PDF, RTF, and TXT without additional third...

Released: Aug 25, 2020

v21 中的更新


New in the LEADTOOLS Recognition Engine

  • New Document Analyzer SDK
    • The Document Analyzer SDK intelligently and automatically extracts data from text-based office documents (DOC, DOCX, XLS, XLX), PDFs, and document images (JPG, TIFF, PNG PDF) without requiring a structured layout
      • Automatically extracts data from images, documents, mixture of images and documents, and from images within documents.
      • Flawlessly handles various data formats, including tables, text flows, data across multiple lines...

Released: Mar 13, 2019

V20 (March 2019 release) 中的更新


  • Document SDK
    • New Searchable Document Redaction
      The .NET and HTML5/JavaScript Document Viewers now support redaction of searchable documents. Not only can users redact sensitive information in image formats such as TIFF, but they can redact PDF, DOCX, and other document formats to control what is visible and searchable by other users. To comply with regulatory requirements such as GDPR and HIPAA, the redaction can be applied when the document is viewed or converted while keeping the other...

Released: Jun 19, 2018

V20 (June 2018 release) 中的更新


HTML5/JavaScript Document Viewer

  • Added diskless mode that allows the viewer to securely load, save, cache, and convert documents and annotations without accessing the file system
  • Import/Export IBM FileNet P8/Daeja annotations to LEADTOOLS or PDF annotations
  • Rotate and delete individual pages within a document
  • Improved results when converting digital photos to PDF and other document formats
  • Added POCO/POJO (Plain Old CLR/Java Object) support for communicating with the document service without...

Released: Jan 24, 2018

V20 中的更新


New Platforms:
Developers can now write a unified code base and simultaneously target even more platforms and devices falling under the ever-broadening .NET Standard umbrella.

  • .NET Framework - Windows
  • .NET Standard
    • .NET Core - Windows, Linux, and macOS
    • Xamarin - iOS, Android, and UWP
    • UWP (Universal Windows Platform)

Azure Services:

  • LEADTOOLS Version 20 includes new libraries to effortlessly create imaging and recognition cloud services that you can consume from your application.

New in...

Released: Mar 28, 2017

v19 (March 2017 Release) 中的更新


  • Fully compatible with Visual Studio 2017
  • Recognition SDK Technology - Enhancements to OCR, Forms & OMR, and New Composite Barcode Recognition
    • Enhanced the performance of LEADTOOLS OCR, Forms, OMR, and Barcode engines.
    • Improved the speed of the LEADTOOLS Advantage OCR engine by as much as 67%.
    • Improved the recognition results of images containing German and Spanish character sets, in addition to previous improvements for English, French, and Japanese.
    • Updated the Forms engine with a new...

Released: Jun 23, 2016

v19 中的更新

Updates in v19

LEAD Technologies Releases LEADTOOLS Version 19 for OS X, iOS, and Android.

Upgraded OCR, Barcode, and Document Writers
Developers gain access to vastly upgraded OCR and Barcode technologies. Additionally, the Document Writers, which are used by the OCR engine to save document formats, have been updated to bolster format support, including the addition of PDF and DOCX formats. Using Version 19 OCR as a foundation, LEADTOOLS mobile developers now have access to LEADTOOLS Driver's...

Released: Nov 19, 2015

Updates in this release

Updates in Document Engine V19 Major Update


  • 82% speed boost to overall performance of Advantage OCR engine.
  • Faster page insertion.
  • Improved recognition accuracy.
  • Higher accuracy of font-size detection through improved noise removal.
  • Enhanced spell checker speed by 100%.
  • Optimized memory usage during AutoZone.
  • Table detection 50% faster.


  • Parse, edit and save modified PDF forms.
  • Read and write PDF Digital Signature.
  • Native memory support.
  • Memory enhancements when loading large PDF...

Released: Dec 17, 2014

Updates in this release

Updates in Document Engine V19

New Documents SDK

  • All-new framework for creating, reading and writing raster and SVG images, annotations, thumbnails, text data and metadata from supported document types
    • Document Converter – Convert PDF & office formats at 100% accuracy without the need for OCR
    • Document Viewer – View any format with text search, annotations, lazy loading, and SVG rendering
    • Document Writers – Redesigned to use cross-platform SVG rather than Windows-only EMF
  • Comprehensive...