RoyT.TrueType 0.2.0

.NET Standard 2.0
dotnet add package RoyT.TrueType --version 0.2.0
NuGet\Install-Package RoyT.TrueType -Version 0.2.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="RoyT.TrueType" Version="0.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add RoyT.TrueType --version 0.2.0
#r "nuget: RoyT.TrueType, 0.2.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install RoyT.TrueType as a Cake Addin
#addin nuget:?package=RoyT.TrueType&version=0.2.0

// Install RoyT.TrueType as a Cake Tool
#tool nuget:?package=RoyT.TrueType&version=0.2.0


Current version: 0.2.0

A TrueType parser for reading, glyphIds, names, descriptions, and kerning information from TrueType fonts. Supports .NetStandard 1.6, .Net 4.6.1 and higher.

You can directly add this library to your project using NuGet:

Install-Package RoyT.TrueType

For more information please visit my blog at

To learn more about the TrueType font format and terminology used here see the Open Type specification.

Why choose this library?

  • It can read the following tables of all fonts that exist in a standard Windows 10 installation:

    • CMAP, character to glyph index mapping table
    • KERN, inter character spacing (kerning)
    • NAME, multilingual strings for font names, styles, ...
    • MAXP, memory requirements
    • HMTX, horizontal metrics table
    • VMTX, vertical metrics table
    • HHEA, horizontal header table
    • VHEA, vertical header table
    • OS2 OS/2 and Windows Metric Table
  • It exposes both an easy to use API to directly get useful information from these tables, but also exposes the tables themselves so you add your own interpretation of the data

  • It works on both .Net Core 1.0 and .Net 4.6.1 and higher by targetting .Net standard 1.6


  • This library aims to read meta-information from .ttf files, it does not give you enough information to render glyphs yourself. For that you need OpenType and HarfBuzz.

Supported Cmap formats


Subtable format supported/unsupported remarks
Segmented mapping to delta values supported Most common
Trimmed table mapping supported
Segmented coverage supported
Byte encoding table supported Least common
High-byte mapping through table unsupported I have not seeen a font that uses this yet, samples welcome
Mixed 16-bit and 32-bit coverage unsupported I have not seeen a font that uses this yet, samples welcome
Trimmed array unsupported I have not seeen a font that uses this yet, samples welcome
Many-to-one range mappings unsupported I have not seeen a font that uses this yet, samples welcome
Unicode Variation Sequences unsupported Specifies variations of a single glyph

Usage example

var font = TrueTypeFont.FromFile(@"C:\Windows\Fonts\arial.ttf");

// Using the helper functions
var glyphIndex = GlyphHelper.GetGlyphIndex('A', font);  // 36
var horizontalKerning = KerningHelper.GetHorizontalKerning('A', 'W', font);   // -76
var name = NameHelper.GetName(NameId.FontSubfamilyName, new CultureInfo("nl-NL"), font); // Standaard

// Diving in deep yourself to get some specific information is also possible
if (font.KernTable.SubtableCount > 0)
    var leftCode = GlyphHelper.GetGlyphIndex(left, font);
    var rightCode = GlyphHelper.GetGlyphIndex(right, font);

    foreach (var subTable in font.KernTable.Subtables)
        if (subTable.Format0 != null && subTable.Direction == Direction.Vertical
            && subTable.Values == Values.Kerning)
            var pair = new KerningPair((ushort)leftCode, (ushort)rightCode);

            if (subTable.Format0.Map.TryGetValue(pair, out var value))
                // Do something
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETStandard 2.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories (1)

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Repository Stars
Re-implementation of The Sims Online.
Version Downloads Last updated
0.2.0 126 2/24/2023
0.1.1 34,390 7/4/2018
0.1.0 784 6/20/2018