iTextSharp.text.pdf.TrueTypeFont.ReadKerning C# (CSharp) Метод

        internal void ReadKerning()
        {
            int[] table_location;
            tables.TryGetValue("kern", out table_location);
            if (table_location == null)
                return;
            rf.Seek(table_location[0] + 2);
            int nTables = rf.ReadUnsignedShort();
            int checkpoint = table_location[0] + 4;
            int length = 0;
            for (int k = 0; k < nTables; ++k) {
                checkpoint += length;
                rf.Seek(checkpoint);
                rf.SkipBytes(2);
                length = rf.ReadUnsignedShort();
                int coverage = rf.ReadUnsignedShort();
                if ((coverage & 0xfff7) == 0x0001) {
                    int nPairs = rf.ReadUnsignedShort();
                    rf.SkipBytes(6);
                    for (int j = 0; j < nPairs; ++j) {
                        int pair = rf.ReadInt();
                        int value = ((int)rf.ReadShort() * 1000) / head.unitsPerEm;
                        kerning[pair] = value;
                    }
                }
            }
        }