Differences between TTF and TTC and Fonts

The downloaded fonts are generally in the TTC or TTF format. TrueType Font type. The TTF font can be used normally, but the TTC font only has some common Chinese characters, but many of the less commonly used Chinese characters do not exist (the font is still displayed in after the font is selected ).
 
The difference between the two is that the TTC file contains more than one font, such as Ming in traditional windows. the TTC contains two types of fonts: the fine body and the new fine body (the two types of fonts are separated by a fixed Distance in English), and the TTF contains only one type of fonts.

TTC is the font of several TTF compositing libraries. After installation, more than two fonts are displayed in the font list. When most of the characters in the two fonts are the same, you can make the two fonts into a TTC file. Currently, different fonts in the common TTC are generally not different in Chinese characters, but the width of the English characters is different, to adapt to different layout requirements.

Although all are font files,. TTC is a new-generation font format standard developed by Microsoft. It allows multiple TrueType fonts to share the same stroke information, effectively saving the space occupied by font files and increasing sharing. However, some software lacks the recognition of such fonts, making it difficult to edit the TTC fonts.

The O icon of the TTF extension represents the OpenType-TrueType font, which adopts the TrueType curve, but supports the advanced features of OpenType.
The T icon of the TTF extension represents the TrueType font, which adopts the TrueType curve and does not support the OpenType feature.
The O icon of the OTF extension represents the OpenType-PostScript font. It adopts the postscript curve and supports the OpenType advanced features.

OpenType is a standard jointly developed by Microsoft and Adobe. Prior to this, there were two major font formats: TrueType and Type 1. The OpenType jointly developed by the two companies included the previous two formats, trueType evolved into OpenType-TrueType, and added support for OpenType advanced features based on the original features. The extension is unchanged (TTF), and the icon is changed from t to O; Type 1 evolved into OpenType-postscript, added support for OpenType advanced features on the basis of the original version,
The extension is located in OTF, And the icon is O.

Now Microsoft and Adobe are trying to get rid of previous TrueType and Type 1 fonts, such as Windows System fonts after Vista are all converted from TT to OT-TT (perhaps to the OT-PS ), while Adobe is vigorously promote OT-PS fonts.

For Adobe, Microsoft, type 1, TrueType, postscript, and Apple's history and grievances, refer to these ...)

The ttf of the so, O icon and the TTF of the T icon are quite different. Although the extension is the same, the vector curve and some basic attributes are the same, the file header and some structures are different. the software/system that supports the T icon does not necessarily support the TTF of the O icon, but it can be converted.

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How to put the downloaded TTF otf file into a Word document?
 
Best Answer:
Put it here. C: \ Windows \ Fonts

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Why do some text files with the TTF extension use the OTF font file icon?

In fact, the opentype font has two internal descriptions. One is to describe it in TTF font format, which is called the TrueType OpenType, also called the OpenType (CID). TTF is used as the suffix name; second, it is described in the font format of CFF (actually type2, also described in postscript). It is called PS OpenType and uses otf as the suffix name.

Is otf TTF.
If you directly modify the OTF extension to TTF, open the font file, the original file is not changed, and the second row still represents the single master of the original file
Open and other otf TTF fonts. The third group of words in the second line is TrueType outlines, which indicates that this is a type of TTF file.

The icon is TT, the extension is TTF, And the turetype font is used.
The icon is O, the extension is OTF, And the opentype font is used.

Some text files with the TTF extension use the icons of the OTF font files. These fonts are originally in the OTF format, not in the TTF format, but (maybe manually or unintentionally) directly change the file extension to TTF.
After the OTF font and extension are changed to TTF, the icon does not change. After installation, the font display and usage are not affected. The system can recognize the font normally.
This situation often occurs. Sometimes you can download fonts from a foreign website. For some reason, you cannot download them by clicking them directly. You have to download them through other channels. However, you do not know whether the font is in TTF or otf format, by default, we set it to TTF format before downloading. After the result is downloaded, we can see that the original file is in the OTF format through the file icon. Sometimes we just don't bother to change it back to the TTF format, copy the file directly to the system font folder, and change it back to TTF format.