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BdfFontDemo/README.md
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# Font bounding box and character bounding box
BDF font file has a font bounding box (FONTBOUNDINGBOX).
This FONTBOUNDINGBOX value indicates that all fonts must have a 3-pixel margin to the left and a 6-pixel margin below the font.
By providing FONTBOUNDINGBOX, this can omit the leftmost and bottom blank spaces from the font pattern.
```
FONTBOUNDINGBOX 21 26 -3 -6
```
Each character has a character-specific bounding box (BBX).
This BBX value indicates that there should be a 1 pixel margin to the left of this character.
Each character has a character-specific bounding box (BBX).
This BBX value indicates that there should be a 1 pixel margin to the left of this character.
By providing a character-specific bounding box (BBX), this can omit the leftmost blank space.
```
STARTCHAR d