ZylSerialPort.NET is a thread based, event driven, asynchronous / synchronous serial port .NET class / component. Use ZylSerialPort.NET component to easily communicate with external devices on serial port connection, such as modems, bar code readers, GSM modules and others.

Symbol Factory 3.0 combines a powerful graphic library management tool with over 4,000 professionally built vector objects that can be used in your HMI application in a variety of file formats. Images may be distributed with custom applications royalty free and OEM licenses are available for bundling with off-the-shelf software. For an ActiveX version check out Symbol Factory ActiveX. For .NET see Symbol Factory.NET.

Delphi and C++ Builder components for automating Microsoft Word.
Word Component Suite is part of Office Component Suite
supports Microsoft Word 97 - 2013
provides full access to Word objects
available for Delphi/C++ Builder 5 - 10.3 and Lazarus 1.8.4
source code included in registered version
distributing components in applications is royalty free

Delphi library for automating LibreOffice.

complete LibreOffice API supported
available for Delphi 7 - 10.3
source code included in registered version
distributing library in applications is royalty free

Optical character recognition component for .NET

Features:

Uses Tesseract OCR engine and Leptonica image library
Available for .NET 4.0 - 4.7
Source code included in full version
Royalty free distribution in applications

Components for viewing, navigating, text extracting and editing PDF files.
uses PDFium open-source PDF rendering engine
available for .NET 4.0 - 4.7
source code included in registered version
royalty free distribution in applications

Delphi linear algebra library.

Features

Uses OpenBLAS optimised BLAS and LAPACK library
Supports Windows 32 and Windows 64
Available for Delphi 5 - 10.2 and Lazarus 1.6.4
Source code included in registered version
Royalty free distribution in applications

Digital Signal Processing library for Delphi and C++ Builder.

uses General Purpose FFT Package
supports Windows 32 and Windows 64
available for Delphi 6 - 10.2
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder components you can use
to add messaging functionality to your applications.

uses standard Windows SimpleMAPI API
compatible with MS Outlook, Outlook Express, Mozilla Thunderbird and other email clients
available for Delphi/C++ Builder 5 - 10.3 and Lazarus 2.0
source code included in registered version
distributing components in applications is royalty free

Optical character recognition library for Android. Use OCR.NET for Android to retrieve text from images.

uses Tesseract OCR engine and Leptonica image processing library
supports Android armeabi-v7a devices
source code included in registered version
royalty free distribution in applications