All values are specified using your preferred unit of measurement - inches, centimeters or millimeters. You can change the preferred unit of measurement in the Preferences dialog, accessible from the Tools menu.
| Text Margins | Specify the margins round the text, separating it from the edges of the box in which the text appears. |
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| Tab Width | If the text contains tab characters, text will be moved forward to the next tab position. Tab positions are regularly spaced about 0.75 apart by default, but you can adjust the distance between tabs here. |