Depending on the type of justification you choose, you might want to adjust letter and word spacing to reduce raggedness or eliminate unusual spacing; e.g., left-justified paragraphs might appear too ragged on the right edge, and full-justified paragraphs might have large spaces between characters and words.
You can specify a minimum line width for a paragraph to reduce raggedness. In addition, Canvas has letter- and word-spacing parameters to let you specify minimum, maximum, and desired spacing guidelines.
To set letter and word spacing parameters, click the Spacing tab to bring it to the front, if necessary. Set the minimum, desired, and maximum spacing in the Letter and Word areas. Specify each setting as a percentage of the current spacing. The desired spacing must be greater than the minimum and less than the maximum. The maximum spacing cannot be less than the minimum.
Canvas will try to adjust spacing to the desired percentage, but might not be able to depending on minimum line width and justification settings. In these cases, Canvas will then try to adjust the spacing within the minimum and maximum percentages you specify. However, if the minimum and maximum spacing parameters are still in conflict with minimum line width or full justification settings, Canvas will ignore the spacing parameters.
If you applied kerning to characters within the selection, Canvas adjusts the spacing as a percentage of the kerning.
To change the spacing of a paragraph by a set amount, you can set the minimum, desired, and maximum percentages to the same value. This has a similar effect to kerning the entire paragraph.