A Comparative Analysis of Information Hiding Techniques for Copyright Protection of Text Documents

Table 9

Unicode zero-width control character symbols in [11].

HTML Hex code	Unicode Hex; code	Unicode char; name
Right-to-left override	U+202E	‮
Left-to-right override	U+202D	‭
Pop directional Formatting	U+202C	‬
Right-to-left override	U+202E	‮