Glyphs and Metrics of Type1 Fonts | .NET

Get Font Metrics

Font metrics contain information such as Ascender, Descender, TypoAscender, TypoDescender and UnitsPerEm. Aspose.Font for .NET API can read the Font Metrics information from the Type1 Font File using the following sample code.

// For complete examples and data files, please go to https://github.com/aspose-font/Aspose.Font-for-.NET
string fileName = dataDir + "courier.pfb"; //Font file name with full path

FontDefinition fd = new FontDefinition(FontType.Type1, new FontFileDefinition("pfb", new FileSystemStreamSource(fileName)));
Type1Font font = Aspose.Font.Font.Open(fd) as Type1Font;

string name = font.FontName;
Console.WriteLine("Font name: " + name);
Console.WriteLine("Glyph count: " + font.NumGlyphs);
string metrics = string.Format(
    "Font metrics: ascender - {0}, descender - {1}, typo ascender = {2}, typo descender = {3}, UnitsPerEm = {4}",
    font.Metrics.Ascender, font.Metrics.Descender,
    font.Metrics.TypoAscender, font.Metrics.TypoDescender, font.Metrics.UnitsPerEM);

Console.WriteLine(metrics);

Detect Latin Symbols

Aspose.Font for .NET lets you detect Latin Symbols from Type1 font files. This can be achieved using the following sample code.

• Load the Font file using FontFileDefinition
• Decode the GlyphId using the DecodeToGid() method

  // For complete examples and data files, please go to https://github.com/aspose-font/Aspose.Font-for-.NET
  string fileName = dataDir + "courier.pfb"; //Font file name with full path
  
  FontDefinition fd = new FontDefinition(FontType.Type1, new FontFileDefinition("pfb", new FileSystemStreamSource(fileName)));
  Type1Font font = Aspose.Font.Font.Open(fd) as Type1Font;
  
  bool latinText = true;
  
  
  for (uint code = 65; code < 123; code++)
  {
      GlyphId gid = font.Encoding.DecodeToGid(code);
      if (gid == null || gid == GlyphUInt32Id.NotDefId)
      {
          latinText = false;
      }
  }
  
  if (latinText)
  {
      Console.WriteLine(string.Format("Font {0} supports latin symbols.", font.FontName));
  }
  else
  {
      Console.WriteLine(string.Format("Latin symbols are not supported by font {0}.", font.FontName));
  }