Lanzamientos de LEADTOOLS Document SDK

Released: Sep 23, 2021

Actualizaciones en v22


What's new in the LEADTOOLS Document Engine v22

Office and Text Formats Enhancements

  • Office format decryption - LEADTOOLS can decrypt DOC/DOCX, XLS/XLSX, and PPT/PPTX files.
  • New option to show hidden Microsoft PowerPoint slides.
  • Improved rendering of Microsoft PowerPoint slides, especially when dealing with master and layout slide relationships.
  • Load spreadsheets saved as XLSB (Microsoft Excel Binary).
  • Major enhancements have been made to the rendering of PST, MSG, and EML...

Released: Aug 25, 2020

Actualizaciones en v21


New in LEADTOOLS Document Engine

Document Framework

  • Document Viewer
    • New Document Viewer Component for Xamarin Forms.
    • Added support to load and play any of LEAD's supported video formats in the .NET and Java Document Viewer (Windows only).
    • Client-side PDF rendering enhancements include:
      • Stamp rendering.
      • Memory optimization.
      • Render digital signatures.
      • Switch to service mode based on individual page size or image encoding.
      • Speedup for calRGB/grayscale color space rendering...

Released: Mar 13, 2019

Actualizaciones en V20 (March 2019 release)


  • 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...

Released: Jun 19, 2018

Actualizaciones en V20 (June 2018 release)


File Formats

  • Image interpolation for images inside PDF documents
  • Custom margins for XLSX and RTF
  • Added options for choosing the page size and order when rasterizing and splitting large spreadsheets into multiple pages
  • New multiplatform RTF engine with improved rendering and speed
  • AFP file format on Linux

Virtual Printer

  • Improved print jobs management
  • Faster printing/spooling when printing multiple simultaneous jobs
  • Lower memory consumption

Additional Toolkit Enhancements...

Released: Jan 24, 2018

Actualizaciones en V20


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)

New in Document Engine:

  • Recognition Engines
    • CMC-7 MICR Font.
    • Added North American Driver's License Barcode Decoder to Barcode Engine (AAMVA specification).
  • Document...

Released: Mar 28, 2017

Actualizaciones en v19 (March 2017 Release)


  • Fully compatible with Visual Studio 2017
  • Recognition SDK Technology - Enhancements to OCR, Forms & OMR, and New Composite Barcode Recognition (available via Add-On)
    • 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...

Released: Jun 23, 2016

Actualizaciones en v19

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...

Released: Feb 11, 2014

Updates in this release

Updates in V18

  • Faster and more accurate results for all OCR engines.
  • Added support for OCR in Linux.
  • Redesigned and expanded Magnetic Ink Character Recognition (MICR) algorithm.
  • Increased performance of PDF I/O operations.
  • Full support for Microsoft Internet Printing Protocol (IPP) in the Virtual Printer.
  • Enhanced Office file format loading speed and display quality.