// specify embedded resource name
string resource = "embedded_font.PAGAP___.TTF";
// receive resource stream
Stream fontStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resource);
// create an unsafe memory block for the font data
System.IntPtr data = Marshal.AllocCoTaskMem((int)fontStream.Length);
// create a buffer to read in to
byte[] fontdata = new byte[fontStream.Length];
// read the font data from the resource
fontStream.Read(fontdata, 0, (int)fontStream.Length);
// copy the bytes to the unsafe memory block
Marshal.Copy(fontdata, 0, data, (int)fontStream.Length);
// pass the font to the font collection
private_fonts.AddMemoryFont(data, (int)fontStream.Length);
// close the resource stream
fontStream.Close();
// free up the unsafe memory
Marshal.FreeCoTaskMem(data);