DLL libary for serial communication for Windows.

communication with any device connected to serial port
easy of use and very powerful
uses multithreading and overlapping for maximum performance
source code included in full version
royalty free distribution with applications

Delphi library for processing Excel .xlsx documents.

create or modify Excel Workbook .xlsx files
Microsoft Office installation is not required
uses Microsoft Open XML SDK 2.5 and ClosedXML libraries
requires Microsoft .NET 4 Framework or higher
available for Delphi 7 - 10.1
royalty free distribution in applications

Delphi and C++ Builder components for automating Microsoft Office.

supports Microsoft Office 97 - 2013
contains Excel and Word components
available for Delphi/C++ Builder 5 - 10.1 and Lazarus 1.6
source code included in full version
distributing components in applications is royalty free

YuPcre2 is a library of Delphi components and procedures that implement regular expression pattern matching using the same syntax and semantics as Perl, with just a few differences. There are two matching algorithms, the standard Perl and alternative DFA algorithm:

The Perl algorithm is what you are used to from Perl and j@vascript. It is fast and supports the complete pattern syntax. You will likely be using it most of the time.
DFA is a special purpose algorithm. If finds all possible matches and, in particular, it finds the longest. It never backtracks and supports partial matching better, in particular multi-segment matching of very long subject strings.

DIZipWriter is a Delphi component to create PKZip-compatible ZIP archives. Archive output is completely stream-based and works with any TStream descendant. DIZipWriter therefore direclty writes to files (TFileStream), memory (TMemoryStream), or even database BLOBs (TBlobStream). Convenience functions to work files and file based archives are available.

Delphi and C++ Builder communication components. Protocols 3964 and 3964R are implemented.

Features:

Available for Delphi/C++ Builder XE2 - 10.1
Source code included in full version
Royalty free distribution in applications

Delphi and C++ Builder components for viewing, navigating, text extracting and editing PDF files.

Features:
uses PDFium open-source PDF rendering engine
available for Delphi/C++ Builder 5 - 10.1 and Lazarus 1.6.2
source code included in registered version
royalty free distribution in applications

Delphi and C++ Builder components to acquire images from scanner devices.

uses standard Windows Image Acquisition API
supports interactive and non-interactive image scanning
supports flip, rotate, crop, scale, stamp filters
supports BMP, PNG, GIF, JPEG and TIFF image formats
available for Delphi/C++ Builder 7 - 10.1 and Lazarus 1.6
source code included in full version
royalty free distribution in applications

j@vascript engine for Delphi.

uses Microsoft ChakraCore j@vascript engine
supports Windows 32 and Windows 64
available for Delphi 6 - 10.1 and Lazarus
source code included in full version
distributing library in applications is royalty free

Delphi and C++ Builder printing library for Android.

uses Android Print and PrintHelper API
supports printing images, HTML pages, PDF files and generated PDF documents
requires Android 4.4 KitKat or higher
available for Delphi/C++ Builder XE7 - 10.1
source code included in full version
royalty free distribution in applications