OpenType, also known as Type 2 font, is another font format developed by Microsoft and Adobe. It is also an outline font, which is more powerful than TrueType. One of the most obvious advantages is that PostScript fonts can be embedded in TrueType software. It also supports multiple platforms, supports large character sets, and is protected by copyright. It can be said to be a superset of Type 1 and TrueType.

The main advantages of OpenType are as follows:

1) Enhanced cross-platform functionality

2) Better support the international character set defined by the Unicode standard.

3) Support advanced printing control capability

4) The generated file is small.

5) Support adding digital signatures to character sets to ensure the integrity of files.

The OpenType standard also defines the suffix of the OpenType file name. OpenType files containing TureType fonts have suffixes. Ttf and files containing PostScript fonts have suffixes. OTF。 If it is a font package file containing a series of TrueType fonts, the suffix is. TTC。