Build document applications with conversion, viewing, scanning, and PDF support.
Handles document processing, conversion, viewing, comparison, and signing workflows.
Adds scanning, virtual printing, image capture, annotation, and display features.
Supports PDF extraction, optimization, generation, and image processing tasks.
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LEADTOOLS Document Plus
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LEADTOOLS Document Plus is a document SDK for building applications that load, create, view, convert, compare, sign, and manipulate documents and images. It combines document libraries with PDF processing, scanning, virtual printing, image capture, annotation, and image processing capabilities for desktop, web, and cross-platform development scenarios.
Document Processing Framework
Provides core libraries for creating, loading, saving, viewing, converting, and managing documents in document-enabled applications. It supports a broad range of document workflows, giving developers a foundation for handling content across different formats and stages of processing.
Document Conversion And Output
Converts documents between supported formats and includes document writer functionality for generating output. This helps applications move content between source files, delivery formats, and archival formats while keeping document handling inside the same SDK.
Document Viewing And Comparison
Includes document viewer and document compare functionality for rendering files and reviewing differences between document versions. It supports applications that need on-screen inspection, visual navigation, and side-by-side or change-focused comparison workflows.
PDF Processing Capabilities
Handles key PDF operations such as merging, splitting, converting, linearizing, distilling, optimizing, and extracting content including text, bookmarks, hyperlinks, and metadata. It also supports converting images to searchable or image-based PDF and converting PDF pages to image formats.
Scanning And Image Acquisition
Supports image acquisition from TWAIN, SANE, and WIA devices, along with HTML5 and JavaScript web scanning. It also includes fast TWAIN acquisition and screen capture support, helping developers bring scanned or captured content directly into document workflows.
Virtual Printing And Capture
Includes a virtual printer driver that captures print jobs from applications and routes them into document processing workflows. This enables software to ingest printed output as digital content and convert it into formats such as PDF for storage or further handling.
Image Viewing And Annotation
Provides image viewers, HTML5 and JavaScript viewing options, annotation, and markup features, plus enhanced bitonal display. These capabilities support scenarios where users need to inspect images, add comments or markups, and review visual content inside custom applications.
Image Processing Functions
Includes more than 200 image processing functions, imaging dialogs, and digital paint technology. Developers can use these libraries to enhance, adjust, and prepare images for viewing, storage, conversion, printing, or downstream document and PDF operations.
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
How to Buy
LEADTOOLS Document Plus is available individually and as part of LEADTOOLS Document Suite SDK.
LEADTOOLS, established in 1990 and headquartered in Charlotte, North Carolina, delivers powerful imaging and recognition libraries for software developers and businesses globally. It is known for its extensive suite of SDKs covering document, medical, multimedia, and image processing applications. LEADTOOLS components enable developers to add advanced imaging, OCR, barcode, and document conversion features to their software solutions. By selecting LEADTOOLS, professionals benefit from a mature development platform backed by decades of industry expertise, strong technical support, and a commitment to ongoing innovation in imaging and document solutions.