OpenType is a cross-platform font format which supports large character sets and complex typographic features.

Books 2

This type specimen makes typeface selection easier and more fun with split pages that let you create over 10,000 type combinations.
The research behind Neutral, typeface that was constructed based on a set of parameters derived by measuring a number of popular 20th-century Sans Serif fonts.

Articles 6

Overview and sample code for accessing OpenType features in CSS.
Tutorials · 19 September 2016 · English
Designer and programmer Jürg Lehni analyses the evolution of typographic technology and the nature of digital fonts, and introduces Donald E. Knuth’s groundbreaking TeX and Metafont systems. An essay complemented by interviews with Peter Biľak, Erik Spiekermann and Dimitri Bruni (NORM).
Essays · 14 April 2011 · English · 4373 words
Jürg Lehni and Peter Biľak in a conversation about the role of technology in type design, font formats and production tools, and Donald E. Knuth’s Metafont.
Interviews · 14 April 2011 · English · 1544 words
A glossary of tools and technologies mentioned in Typeface As Programme.
Essays · 14 April 2011 · English · 1084 words
Rudy VanderLans talks with Peter Biľak about the Typotheque founder’s education, design practice and experience as an ex-pat Slovak living in the Netherlands. Dot Dot Dot is discussed, as well as the typefaces Biľak has produced and his current teaching practice.
Interviews · 13 April 2005 · English · 4079 words

Blogs 3

PDF Font Tester is an available online API that allows users to create their own samples, controlling the text, position, size, leading, OpenType features and colour, and generate a PDF file with the font samples.
7 March 2012
Irma Text is ideal for the formal requirements of contemporary publishing or giving a unique voice to brand identity projects. Irma is a versatile family of fonts, offering a complete palette of typographic choices.
14 September 2011
Typotheque now licenses the engine behind our Webfont service, allowing font conversion to EOT, WOFF and SVG and Character Set Viewer, the online application that displays all glyphs from a TTF or OTF font, including their OpenType alternatives (GSUB and GPOS).
23 April 2010

Help 34

If you use fonts in Adobe applications (InDesign, PhotoShop, Illustrator), and the fonts are missing or appear corrupted, search your computer for all copies of the file AdobeFnt.lst (for example, Adobefnt01.lst ... Adobefnt12.lst) and delete them. The easiest method is to search your hard disk for all .lst files.
Typotheque fonts are Unicode compliant, so you need to enter your text correctly encoded. An easy way to find out if you have correctly encoded text is to copy-paste a sample of the text into Internet browser, for example into Google search.
Some old text documents working with Arabic or Indic languages use 8-bit encoding, which required to use proprietary fonts. Such fonts can only use 256 glyphs, which is not sufficient for correct rendering of Devanagari (or other 10 Indic writing scripts).
Just go to Glyphs, on the font presentation page.
OpenType is a computer font format that was built on its predecessor TrueType, intended to supersede both the TrueType and the PostScript Type 1 font formats.

Other pages 6

PostScript Type 1 fonts
How to choose different styles of numerals in applications which support advanced OpenType typographic layout features.
Activating Small Caps in OpenType fonts
The difference between Typotheque's OpenType Std and Pro fonts is that Std fonts do not include Cyrillic and Greek characters. All other features in these fonts are identical.
Comprehensive table of OpenType feature tags and their support in applications (software). OpenType features are created by using the tags in creating feature scripts that describe how characters are to be manipulated to make the desired feature.