Files To Be Included With Your Application

Files for redistribution are installed by the LEADTOOLS setup. For more information on the installation directory structure, refer to Installation Directory.

Legal Notices

Note: You may not copy or redistribute any of the following files without obtaining the proper license. In some cases, the license is included with your initial purchase of LEADTOOLS. In other cases, you must obtain a license from a third party or enter into a royalty agreement with LEAD to obtain the proper license. For these special licensing situations, see the notes below accompanying the specific file.

Note: You may not distribute the header files with your application, and you may not provide software development capabilities in your application.

LTKRN is required for ALL C API applications.

LTKRN and LTWVC are required for ALL C++ Class Library applications.

Note: Most of the LEADTOOLS Windows DLLs are compiled with Visual Studio 2017 and are linked statically to the Microsoft Visual C++ 2017 Runtime.
The Microsoft Visual C++ 2017 Redistributable Package cannot be installed on some versions of Windows. For supported versions, see Choosing a Deployment Method and Update for Universal C Runtime in Windows . The Microsoft Visual C++ 2017 Runtime also requires the Windows Universal CRT library, which is distributed as part of Windows 10. For information on how to redistribute the universal CRT, see Introducing the Universal CRT. Only the following DLLs are compiled with requirements for specific versions of the Microsoft Visual C++ Runtime:

Note: For more information about distributing the Microsoft C/C++ runtime files, refer to:

The following table summarizes the files you must include with your distribution. Most files in the table are optional. These files are referred to as "Redistributables" in the License Agreement.

Engine Redistributables Win32 Platforms x64 Platforms LINUX Platforms
LEADTOOLS OCR Module - LEAD Engine LTOCR Also requires: LEADTOOLS OCR Module - LEAD Engine Runtime DLL: DLL: SO::
and OCR Output files. Ltocru.dll Ltocrx.dll
Library: Library
Ltocr_u.lib Ltocr_x.lib

OCR Output Files

The following files are required for OCR output:

Some DLLs are optional and required only for OCR output support. May require one or more of the following, depending on the file format.

Redistributables Explanation Win32 Platforms x64 Platforms LINUX Platforms
LTDOCWRT Document Writer kernel, required for all applications. DLL: DLL: SO:
The header file is LtDocWrt.h. LtDocWrtu.dll LtDocWrtx.dll
LtFilu.dll LtFilx.dll
LfJb2u.dll LfJb2x.dll
LfCmpu.dll LfCmpx.dll
LfTifu.dll LfTifx.dll
LfRawu.dll LfRawx.dll
LfBmpu.dll LfBmpx.dll
LfPngu.dll LfPngx.dll
Library: Library:
LtDocWrt_u.lib Ltkrn_x.lib
LTDOCWRTTTF Output to True Type Font. DLL: DLL: SO:
LtDocWrtTtfu.dll LtDocWrtTtfx.dll
LTDOCWRTALTO Output to ALTO (Analyzed Layout and Text Object). DLL: DLL: SO:
LtDocWrtAltou.dll LtDocWrtAltox.dll
LTDOCWRTDOC Output to Microsoft Word 97-2013 Document Format. DLL: DLL:
LtDocWrtDocu.dll LtDocWrtDocx.dll
LTDOCWRTDOCX Output to Microsoft Document Format. DLL: DLL:
LtDocWrtDocXu.dll LtDocWrtDocXx.dll
LTDOCWRTEMF Output to Windows Enhanced Metafile format. DLL: DLL:
LtDocWrtEmfu.dll LtDocWrtEmfx.dll
LTDOCWRTHTM Output to HTML format. DLL: DLL:
LtDocWrtHtmu.dll LtDocWrtHtmx.dll
LTDOCWRTPDF Output to PDF and PDF/A formats. DLL: DLL:
LtDocWrtPdfu.dll LtDocWrtPdfx.dll
LTDOCWRTRTF Output to Rich Text Format. DLL: DLL:
LtDocWrtRtfu.dll LtDocWrtRtfx.dll
LTDOCWRTTXT Output to plain text format. DLL: DLL:
LtDocWrtTxtu.dll LtDocWrtTxtx.dll
LTDOCWRTXLS Output to MS Excel format. DLL: DLL:
LtDocWrtXlsu.dll LtDocWrtXlsx.dll
LTDOCWRTXPS Output to Open XML Paper Specification format. DLL: DLL:
LtDocWrtXpsu.dll LtDocWrtXpsx.dll

LEADTOOLS SDK Platform and Application-Specific Redistributables

Application-Specific For LEADTOOLS SDK core redistributables requirement of the exact assemblies and libraries to use on a specific platform and application, refer to the Files to be Included.
Application-Java-Specific For LEADTOOLS SDK core redistributables requirement of the exact assemblies and libraries to use on Java platforms and applications, refer to the Files to be Included and Files to be Included with your Java Application.
Assembly Directory For LEADTOOLS SDK installation directory information, refer to Installation Directory.
Licensing For licensing information, refer to LEADTOOLS Runtime Licensing and LEADTOOLS Runtime Licensing FAQ
Help Version 21.0.2020.8.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2020 LEAD Technologies, Inc. All Rights Reserved.