Difference Between Similar Terms and Objects

Difference Between TTF and OTF

TTF vs OTF

TTF and OTF are extensions that are used to indicate that the file is a font, which can be used in formatting the documents for printing. TTF stands for TrueType Font, a relatively older font, while OTF stands for OpenType Font, which was based in part on the TrueType standard.

A significant difference between the two is in their capabilities. TTF depends solely on glyph tables that define how each character looks while OTF is able to use glyphs along with CCF (Compact Font Format) tables. The cubic Bezier splines used by CCF allow for fewer points to be used in defining how a character would look compared to the quadratic Bezier splines used by TTF fonts. OTF also adds a few smartfont features, on top of the sfnt structure that is being used by TTF, to add additional language support to the fonts. Although it may not have a very significant effect on your computer, it is also worthy to note that the use of CCF in OTF could lead to file sizes that are significantly smaller, given that no special features are used in the font.

Despite the proven superiority of OTF fonts, especially when using CCF, the use of TTF fonts is still very prolific. It may be taking much longer than expected, but the number of OTF fonts is already on the rise. The reason behind this popularity is the simplicity of making TTF fonts compared to OTF fonts that use CCF. Since there is really no reason to stop using TTF in creating new fonts, most font makers still stick to what they know works, even if it is inferior to the alternative.

There is really no issue for the end user as almost all modern applications that uses fonts are able to work with TTF and OTF files. Users don’t need to choose one over the other as they can be used together in creating documents or printing layouts.

Summary:

1. TTF is the file extension for TrueType fonts while OTF is the extension for OpenType fonts.

2. TTF fonts depends solely on a glyph table while OTF fonts can either have glyph tables or CCF

3. TTF font files are often much bigger compared to OTF font files

4. TTF fonts are still so much more popular than OTF fonts

5. TTF fonts are much easier to make compared to OTF fonts


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4 Comments

  1. Thanks, I was downloading some fonts and was curious about the difference between otf and ttf files. I didn’t recognized the otf file since I was used to ttf. This was very helpful.

  2. You refer to Compact Font Format as CCF. It just looks like it should be CFF.

  3. curious if a new font format will emerge – easier to make ( like ttf ) and with all the new advantages ( otf )

  4. Thanks for this clear explanation. As I understand if the only disadvantage is making the OTF fonts, but there are no real disadvantages for using fonts. Only’s advantages as far as I can see…

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