The PDF Xpansion technology:
Everything from one source
All technology and software components are programmed exclusively by our own development team. This guarantees a consistent concept, transparent architecture and qualified technical support. The PDF Xpansion libraries and extensions are used in widely used applications such as our PDF freeware, the Perfect PDF® family, various PDF products licensed by soft Xpansion as well as in applications from other companies – see our PDF SDK customer list.

PDF Xpansion technology is therefore available as a stand-alone software development kit (SDK). On the other hand, the technology is also used in many standard software programs and PDF solutions for a wide range of tasks and applications.
Development languages & platform
C++
C#
VB.NET
Delphi
C++ Builder
MS Office VBA
The PDF Xpansion technology can be used in any operating system environment under Windows and with all service packs. The engine was written in C++, all SDK libraries provide a C++ API. SDK interfaces support use in C++, NET (C# or VB.NET languages), Delphi, with COM interface (COM compatible languages: Delphi, C++ Builder, VB or JavaScript) and some special cases.
More information can be found in our “PDF Xpansion SDK Guide”.
Flexible license policy
The PDF Xpansion license policy takes into account the specifics of the licensed products as well as their users and application areas. Here is a brief overview of our PDF Xpansion license models:

- Free license for personal use
- Freeware for commercial use
- ngle-workstation license for Perfect PDF® & Print application
- Multi User License (MUL)
- PDF Xpansion SDK
For more information about the license conditions, see “System requirements and licensing”.