SelectPdf for .NET is a professional PDF library that can be used for creating, writing, editing, handling and reading PDF files without any external dependencies within .NET applications. Using this .NET PDF library, you can implement rich capabilities to create PDF files from scratch or process existing PDF documents entirely through C#/VB.NET without installing Adobe Acrobat.

The Envision Image Library augments Borland/Embarcadero's Delphi with powerful imaging capabilities. The library provides image file I/O for popular file formats, printing, scanning, ocr interface, and image processing features for 32 and 64 bit applications.

Ninja Database Lite is a light and nimble database for Windows Phone 7, Silverlight 3, Silverlight 4, Silverlight 5, .NET 3.5 and .NET 4.x. It is under 100KB and is built for high performance. Easily save and load any public object to isolated storage. The entire object graph is saved. Ninja Database Light uses a custom binary serialization library to save the data in a compact format. The serializer can also be used to convert an object into bytes and send to your web service, WCF Service, or cloud service. Types are automatically registered and cached. Industry standard AES encryption, and Mini LZO compression is included. The database can be encrypted and compressed or the library can be used to encrypt or compress other files in isolated storage. Download the full list of features.

Delphi and C++ Builder serial communication library for FTDI devices for Android.

uses FTDI D2XX library
no special root access privileges needed
available for Delphi/C++ Builder XE6 - 10.2
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder communication library for FTDI FT311D and FT312D devices for Android.

Features:

Supports the complete FT311D/FT312D functionality
No special root access privileges needed
Available for Delphi/C++ Builder XE6 - 10.2
Source code included in registered version
Royalty free distribution in applications

HTML Editor Library - WYSIWYG HTML Editor for Delphi. Yes, it is real (and currently the only one) WYSIWYG and 100% native HTML editor written in Delphi.

Basic features
WYSIWYG editing.
Does not use IE or other libraries (100% native Delphi code).
Supports all Delphi versions from Delphi 5 to Delphi 10.2 Tokyo.
VCL (Win32/64) FMX (Windows / OSX / Android / iOS / Linux)

WiFi Framework is the Software Developer Kit (SDK) for software developers that provides an easy access to the WiFi features on Windows desktop platforms. WiFi Framework is the part of Wireless Communication Library but can be used as stand alone library.

PDF4NET is a .NET library for adding PDF capabilities in your .NET applications. Its simple and easy to use object model allows creating complex PDF documents or import existing PDF files with a few lines of code. The library provides support for both standard .NET framework and compact .NET framework. Written entirely in C#, it is a 100% .NET component, not just a COM wrapper. And not to forget, ROYALTY FREE distribution.