D-Type Rendering Technology

Standard Suite

Extensions & Plugins

Power Suite

Apps & Tools

About D-Type


D-Type is a suite of professional high-performance scalable rasterizing engines for fast and smooth (anti-aliased) text and 2D and 3D graphics with built-in support for D-Type, TrueType, OpenType, TrueType and OpenType Collections, Type 1, Type 3, Web Open Font Format (WOFF 1.0 and WOFF 2.0) and bare CFF fonts. This powerful and fully cross-platform technology is ideal for software developers who wish to render high-quality anti-aliased text and scalable graphics from their applications and generate super fast, crisp, clear and smooth output on any device, platform or operating system.

D-Type Standard Suite is our starter software package. This is a single C/C++ library which includes the following D-Type engines:

The following D-Type engines are available as optional extensions. Each is provided as a separate C/C++ library:

Users who wish to take full advantage of D-Type's capabilities might be more interested in D-Type Power Suite which includes the following D-Type engines. Each ship as a separate C/C++ library:

In addition to the above C/C++ libraries, we offer the following applications and tools:

D-Type technology is a result of our extensive experience in digital type technologies, 2D and 3D rendering and font hinting. Our work on D-Type started in early 1995 primarily as a research project. Due to the success of this project, in early 1996 we decided to release the first commercial version of D-Type Font Engine and Rasterizer. D-Type PowerDoc Engine and Text Layout Extension followed a few years later. The goal of the project from the very beginning was to create a superior font and scalable graphics rendering engine suitable for all types of applications — including the most demanding ones such as games and multi-media software. To achieve this goal, a whole set of completely new algorithms had to be invented and developed: sophisticated anti-aliased rendering, intelligent automatic font hinting, advanced real-time font interpolation and grayscale bitmap tuning are just a few of them. Today, D-Type is most likely the world's fastest software rendering technology for smooth text and 2D and 3D graphics.

More Information

Why D-Type?

Unsurpassed quality, speed and performance. D-Type can be used in a broad range of applications, including charting, presentation, computer animation, games, desktop publishing etc.
Excellent anti-aliasing capabilities with support for up to 256 levels of any color. Regardless of the size, D-Type output is always crisp and smooth!
Manual font hinting is not necessary. D-Type Font Engine has a built-in auto-hinting subsystem that produces absolutely stunning results with virtually any font.
Supports kerning, rotation, true text outline with custom thickness, custom transparency and special effects. Suitable for both device independent and device dependent text.
Clean, robust, reliable, object-oriented and cross-platform API, effective memory management and highly optimized code.
Support for D-Type, TrueType, OpenType, Type 1 and bare CFF fonts as well as TrueType and OpenType font collections. Variable and Multiple-Master support is available for Type 1 and D-Type fonts.
2D text transformations including horizontal and vertical compression, expansion, skew, mirroring and rotation.
D-Type can pass grayscale data to your application as a bitmap image. This is ideal for bitmap data manipulation or masking other images.
D-Type libraries are fully reentrant and, when used properly, thread-safe. You can initialize as many instances of D-Type engine as necessary and use them simultaneously!
Over 20 years of experience in system and application development, rasterization, digital type and font technologies.

Platforms and Portability

D-Type is designed with portability in mind. Our code is written in a clean, object-oriented and platform independent manner in a subset of industry standard C++. Consequently, all D-Type engines can be compiled and deployed on virtually any platform in existence today. This includes Microsoft Windows, Linux, macOS, iOS, Android, Windows Phone, Windows RT, XBox, Raspberry Pi, Zealz GK802 Quad Core Android Mini PC and even MS-DOS. And since D-Type API is the same on all these platforms, developers of cross-platform applications only need to learn one cross-platform API and implement their D-Type rendering subsystem once.

Windows Mac Linux iOS Android


Licensed D-Type engines are available out of the box for Microsoft Windows (all versions), macOS (both Intel and ARM based), Linux (all modern distributions), BSD (FreeBSD, NetBSD, OpenBSD), iOS, Android, XBox, Raspberry Pi and Zealz GK802 Quad Core Android Mini PC. Custom builds for other platforms are also available upon request. For more information on pricing and different licensing options, please see our Contact Us page.

To ensure quick and smooth integration, D-Type comes with numerous examples that demonstrate various D-Type features. In addition, all licensing options come with optional support and free future upgrades.

Key Features


With over 6,000 run-time auto-hinted anti-aliased characters/second and well over 18,000 non-hinted anti-aliased characters/second at 12 ppem on a 266 MHz Pentium II processor, D-Type Font Engine is most likely the world's fastest grayscale font rasterizer.


Absolutely amazing quality due to a combination of excellent anti-aliasing capabilities and revolutionary hinting and auto-hinting algorithms. D-Type's anti-aliasing provides support for up to 256 levels of gray (or other color intensities), while font hinting significantly improves text legibility. Unlike many other graphics packages that generate gray-levels simply by down-sampling a larger black and white bitmap, D-Type generates gray-levels during the rasterization process itself. As a result, D-Type's rasterizer is lightning fast, can easily support up to 256 levels of gray (or other colors) and does not suffer from overflow problems when generating extremely large characters or shapes. In brief, D-Type's anti-aliasing is not just a mechanism that makes the diagonal lines look smooth; it is a sophisticated technology designed to enhance screen resolution and improve text legibility regardless of the size or device.


D-Type Font Engine is one of the very few font engines with direct support for Multiple-Master font technology. Multiple-Master is a revolutionary breakthrough in font technologies that allows two or more outline fonts, or base designs, to be incorporated into a single font file. This unique feature allows applications to create hundreds or thousands of additional font variations from a single font file by applying D-Type's real-time interpolation capabilities (also known as font morphing). Possible examples include font variations ranging from Light to Black, Condensed to Extended, Sans Serif to Serif, Wedge Serif to Slab Serif etc.


D-Type Font Engine provides support for the following popular font formats:


D-Type Font Engine excels when it comes to special text effects and text transformations. D-Type text can be drawn at any size (with kerning and inter-character spacing on or off), stretched, compressed, mirrored (horizontally and/or vertically), skewed (horizontally and/or vertically), rotated, outlined (with a custom outline thickness), transparent (with a custom opacity factor), embossed, filled, dilated, blurred, shaded, in an arc etc. In addition, D-Type makes it possible to draw anti-aliased text or shapes filled with a custom texture provided from another bitmap or BMP image.


Both D-Type Font Engine and D-Type Rasterizer can draw to 8-bit grayscale or a variety of 16, 24 and 32-bit RGB(A) surface formats supplied by your application. This type of rendering is platform independent, extremely fast and very suitable for real-time animations. In addition, surface's RGB data can be retrieved easily, and optionally, saved in some of the popular image formats.


An application can use D-Type's ultra-fast rasterizer to generate anti-aliased shapes or scalable vector-based graphics of absolutely amazing quality. D-Type Rasterizer is highly customizable and supports both the Odd-Even and Nonzero Winding Number rule. In addition, D-Type Rasterizer comes with a library of the most common shapes, such as lines, circles, ellipses, rectangles, rounded rectangles and polygons, which can be drawn filled or stroked, with a custom line width. The library is shipped as source code in C and can be expanded or modified easily.


D-Type can support extremely large character sets, including national character code standards used with Chinese, Japanese or Korean (CJK) fonts. In addition, D-Type's 2 and 4-byte Unicode character representation makes it possible to display all character sets in the world simultaneously.


D-Type features clean, simple, robust, object-oriented and cross-platform API. Since global/static variables are not used anywhere in our libraries, applications can initialize multiple instances of D-Type engine and use D-Type functions simultaneously. Consequently, D-Type libraries can be used on multi-threaded systems without relying on mutexes or other synchronization/blocking code.

D-Type Customers

The following is just a partial list of companies using D-Type in their applications:

ArcSoft ArcSoft
Creative Solutions Creative Solutions
Creative Technology Ltd. Creative Technology Ltd.
FormWeb FormWeb
FormWeb.com online forms generator relies on D-Type engine for charting and dynamic graphics.
GOTO Software GOTO Software
ButtonFly is an excellent application for button generation powered by D-Type Font Engine and Rasterizer.
Hewlett-Packard Co. Hewlett-Packard Co.
Partners Imaging Services Partners Imaging Services
TEDISYS Tele Diffusion Systems TEDISYS Tele Diffusion Systems
Veer Veer

And this is what they said...

"I really like the rasterizer -- the output quality is fantastic."
"I was impressed by the quality and speed of the engine, and want to integrate it in all our products."
"That's great! Multiple-Master support is a big issue for us."
"The engine works very good in our application."
"Your last email was very helpful. The results are very good!"
"Rendering is really fast. We draw really large shapes and it always works."
"I'm thinking of replacing our entire engine with D-Type, because D-Type seems to be much faster and it produces better looking text."

Release 9.0

Release 9.0 D-Type 9.0 (released on December 20, 2021) is another major D-Type release which brings support for 3D rasterization, OpenType SVG Native fonts, HarfBuzz 3.2.0 shaping library, additional Unicode scripts and other important new features and capabilities. See this article for details and some frequently asked questions.

Release 8.0

D-Type 8.0 (released on July 21, 2020) is a major D-Type release with more exciting new features and capabilities. See this article for details and some frequently asked questions.

Release 7.5

D-Type (released on May 22, 2020) is a major D-Type release with some exciting new features and capabilities. This is probably the most important update since the release of D-Type Engine 7.0 in August 2018. Below is an overview of what's new in this release.

All Platforms

Windows Specific

Linux Specific

Mac Specific

Release 7.0

D-Type Engine 7.0 was released on August 30, 2018. This major new version enables support for OpenType 1.8 variable fonts (with either TrueType or CFF2 outlines) and introduces many new text style/formatting options.

Release 6.0

In November 2016 we announced the release of D-Type Engine 6.0. This release comes with new features and enhancements designed to simplify common tasks, boost performance and enable additional capabilities. Here is a quick overview of the major accomplishments in D-Type 6.0:

Release 5.0

The 5.0 release, which was first made available for download on January 30, 2014, marks yet another important milestone in our principal research and development project that focuses on font rasterization, text layout and scalable 2D graphics rendering technologies.

D-Type 5.0 features an application programming interface (API) that is backward compatible with our 4.0 release. However, some obsolete and/or undocumented APIs have been removed and a number of new features have been added. Here is a quick overview of the major accomplishments that made D-Type 5.0 possible.

If you are interested in evaluating D-Type 5.0, you can request D-Type Evaluation libraries from our Contact Us page.

Release 4.0

In late 2003 we announced D-Type 4.0. This release was written entirely in industry standard C++ which resulted in a faster, easier to maintain and more scalable engine. Not only was the 4.0 engine built upon advanced concepts from object oriented programming but also everything that was learned while working on previous D-Type releases. Even today, D-Type 4.0 is probably the only font and graphics rendering engine on the market featuring a true object oriented internal architecture.

Compared to our previous releases, D-Type 4.0 also brings lots of new features, improvements and optimizations. The most important ones are listed below:

  1. Simplified and more flexible initialization of the engine.

  2. Simplified overall architecture of the engine. The 4.0 engine features a modern, scalable and powerful API while any inconsistencies and/or legacy issues have been removed.

  3. Improved font access speed (fonts open noticeably faster compared to previous releases).

  4. Improved rendering quality even further. This is achieved by utilizing a new rendering method that relies on our latest in-house rendering technologies.

  5. Advanced filters for a more balanced color contrast and enhanced bitmap quality.

  6. Support for advanced typography including ligatures and contextual glyph shaping (such as in Arabic scripts).

  7. Significantly improved stream management subsystem. The stream handling in 4.0 is very abstract and capable of supporting complex fonts files that exist virtually anywhere. For example, the new engine can support fonts that consist of multiple parts (e.g. glyph data, metrics, character maps) that exist in different streams (e.g. memory, local or network disk or even the Internet). Starting with this release, the new engine supports native kerning for Type 1 fonts that include kerning information in a separate .afm file.

  8. Improved font compression of the native D-Type font format and additionally reduced memory footprint of the engine. Also, the engine can be configured specifically for memory constrained devices, which reduces the memory footprint even further.

  9. Improved error handling mechanism (e.g. when encountering bad fonts). The 4.0 release has a very powerful API for reporting errors in bad fonts back to the end-user.

  10. Font activation and deactivation mechanism. This allows application to activate fonts only when and if they are used and deactivate fonts when they are not needed for a longer period of time. Consequently, applications can maintain very large static font catalogs without consuming too much memory.

  11. Ability to save fonts in D-Type font format and an API for creating subsetted D-Type fonts. This API gives developers full control over the glyph subsetting process. This, for example, allows developers to save in the output D-Type font only those glyphs that are actually used in their documents. Subsetted D-Type fonts are smaller in size than the original input fonts (since they contain fewer glyphs) and, therefore, very suitable for embedding in electronic documents.

  12. An API to access D-Type's pattern catalog.

  13. A new surface type that provides basic support for rendering in 8-bit indexed (palletized) color mode.

  14. A new method that allows applications to supply their own alpha-levels (grayscale) to be utilized by D-Type Rasterizer when rasterizing output primitives.

  15. New functions that provide precise control over hinting, positioning, sub-pixel precision and output quality.

  16. More ways to construct and render custom shapes.

  17. The end-user API allows developers to specify coordinates as both floating point and 24.8 fractional values.

  18. 32-bit representation for Unicode character codes and glyph indices. This allows D-Type Font Engine to support (theoretically) more than 4 billion characters and/or glyphs in a single font file.