Removes unused glyphs from the font.
BitMiracle.Docotic.Pdf (in BitMiracle.Docotic.Pdf.dll)
public bool RemoveUnusedGlyphs()
Public Function RemoveUnusedGlyphs As Boolean
if unused glyphs were successfully removed from the font;
This method might fail to remove unused glyphs in the following cases:
Font is not embedded. For such fonts the Embedded
property is false.
Font is used in a PdfTextBox or PdfComboBox and
therefore all font glyphs should be preserved. A PDF reader or editor might be unable
to change text in a control if some glyphs are missed in the font.
Font is of an unsupported type. For now, only TrueType fonts, created with
AddFont Overload method are supported.
This method is useful for decreasing size of produced PDF documents. The method
creates a font subset with used glyphs only and embeds the subset in the current document.
A glyph is treated as used if current document contains character drawn with the glyph.
This method does not remove unused glyphs from Type1 fonts and from any fonts in
existing PDF documents.