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  <meta name="Author"
        content="David Turner">
  <title>FreeType Glyph Conventions</title>
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<h1 align=center>
  FreeType Glyph Conventions
</h1>

<h2 align=center>
  Version&nbsp;2.1
</h2>

<h3 align=center>
  Copyright&nbsp;1998-2000 David Turner (<a
  href="mailto:david@freetype.org">david@freetype.org</a>)<br>
  Copyright&nbsp;2000 The FreeType Development Team (<a
  href="mailto:devel@freetype.org">devel@freetype.org</a>)
</h3>

<p>This document presents the core conventions used within the FreeType
  library to manage font and glyph data.  It is a <em>must-read</em> for all
  developers who need to understand digital typography, especially if you
  want to use the FreeType&nbsp;2 library in your projects.</p>

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      <h2>
        Table of Contents
      </h2>
    </td>
  </tr>
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<h2>
    <a href="glyphs-1.html">I. Basic Typographic Concepts</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-1.html#section-1">1. Font files, format and
      information</a>
      <br>

<a href="glyphs-1.html#section-2">2. Character images and mappings</a>
      <br>

<a href="glyphs-1.html#section-3">3. Character and font metrics</a>
      <br>
    </h3>
    </blockquote>

<h2>
    <a href="glyphs-2.html">II. Glyph outlines</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-2.html#section-1">1. Pixels, points and device
      resolutions</a>
      <br>

<a href="glyphs-2.html#section-2">2. Vectorial representation</a>
      <br>

<a href="glyphs-2.html#section-3">3. Hinting and bitmap rendering</a>
      <br>
    </h3>
    </blockquote>

<h2>
    <a href="glyphs-3.html">III. Glyph metrics</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-3.html#section-1">1. Baseline, pens and layouts</a>
      <br>

<a href="glyphs-3.html#section-2">2. Typographic metrics and
      bounding boxes</a>
      <br>

<a href="glyphs-3.html#section-3">3. Bearings and advances</a>
      <br>

<a href="glyphs-3.html#section-4">4. The effects of grid-fitting</a>
      <br>

<a href="glyphs-3.html#section-5">5. Text widths and bounding box</a>
      <br>
    </h3>
    </blockquote>

<h2>
    <a href="glyphs-4.html">IV. Kerning</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-4.html#section-1">1. Kerning pairs</a>
      <br>

<a href="glyphs-4.html#section-2">2. Applying kerning</a>
      <br>
    </h3>
    </blockquote>

<h2>
    <a href="glyphs-5.html">V. Text processing</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-5.html#section-1">1. Writing simple text strings</a>
      <br>

<a href="glyphs-5.html#section-2">2. Sub-pixel positioning</a>
      <br>

<a href="glyphs-5.html#section-3">3. Simple kerning</a>
      <br>

<a href="glyphs-5.html#section-4">4. Right-to-left layouts</a>
      <br>

<a href="glyphs-5.html#section-5">5. Vertical layouts</a>
      <br>

<a href="glyphs-5.html#section-6">6. WYSIWYG text layouts</a>
      <br>
    </h3>
    </blockquote>

<h2>
    <a href="glyphs-6.html">VI. FreeType Outlines</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-6.html#section-1">1. FreeType outline description
      and structure</a>
      <br>

<a href="glyphs-6.html#section-2">2. Bounding and control box
      computations</a>
      <br>

<a href="glyphs-6.html#section-3">3. Coordinates, scaling, and
      grid-fitting</a>
      <br>
    </h3>
    </blockquote>

<h2>
    <a href="glyphs-7.html">VII. FreeType bitmaps</a>
  </h2>
    <blockquote>
    <h3>
      <a href="glyphs-7.html#section-1">1. Vectorial versus pixel
      coordinates</a>
      <br>

<a href="glyphs-7.html#section-2">2. FreeType bitmap and pixmap
      descriptor</a>
      <br>

<a href="glyphs-7.html#section-3">3. Converting outlines into
      bitmaps and pixmaps</a>
      <br>
    </h3>
    </blockquote>

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