Ttf font is relatively large, usually several meters, and the space for putting pictures is also relatively large.
However, ttf fonts can have a slim version, so you should do it yourself, and English is easy to handle. Download a ttf font you need, use the FontCreator tool, delete all the Chinese characters, and then save it. ttf font will be much thinner, generally.
It's dozens of K.
If you just want to keep the Chinese characters you want, it will be more troublesome. I checked it online before, and I made it myself with pictures. This is very troublesome, at least I haven't figured it out yet.
Ideas:
The only stupid way is to open two ttf fonts, delete all the Chinese characters in the other one, and then copy the required words from the other ttf by copying and pasting.
Then it's OK to save it.
Operation process:
1. Download your favorite ttf font.
2. Download and install FontCreator
3. Open two ttf fonts.
4. Right-click the unselected word to be optimized->; delete
5.ctrl+f search, select "Mapping" option, select Microsoft Unicode BMP Only, and enter the Unicode code of the word to be searched in the box on the right, remember that it must start with "$", for example, "$ 8c46"-> seek.
When you look for characters in it, you will look for them according to their Unicode codes.
Provide a Unicode transcoding tool at /tools/unicode.aspx.
Just enter Chinese characters-> click "Chinese to Unicode" to get the corresponding Unicode code of Chinese characters.
6. select "insert"-> "glyph" in the ttf font to be pasted.
7. copy the found word from the font->; Select the font box just generated,-> CTRL+E (note that it is not ctrl+c)- > Check the last check in the pop-up dialog box-> OK.
Repeat this way, copy down all the words you need and save them.