CompoCompiler adds accented characters to fonts.

CompoCompiler

Compo compiler uses a special command file (a text file with a very simple structure) and applies it to your selected fonts to add composites. Plus — you can build command files automatically in Compo Compiler using any font file as a source of composite information. For example, you can take Arial or Lucida Unicode and build a command file with information about all the composites in these files and then apply this command file to any of your fonts. The positions of the components in the command file are defined relatively, so command files work with almost any font, independent of the characters' proportions.  

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