amounts of memory for text display, which might cause performance
problems for some systems.
Applying paragraph formatting
In Canvas, you can control paragraph attributes, such as justification
and leading. Paragraph attributes affect entire paragraphs, even if you
select a single character, or place the insertion point anywhere in the
paragraph. If you select text in multiple paragraphs, all the para-
graphs will be affected.
Paragraph-level formatting includes the following:
leading and paragraph spacing
indents
tabs
alignment (justification)
automatic letter and word spacing
hyphenation
widow and orphan controls
Setting line and paragraph spacing
Using the Text menu, Text Ruler, or Type palette, you can adjust the
spacing, or leading, between lines of text. You can also insert extra
space before and after paragraphs using the Type palette.
Canvas provides two methods of specifying leading: ratio (or per-
centage) and point size.
Ratio and percentage leading are based on the normal lead-
ing of the largest type size in the preceding line. The normal
leading is usually designed to be slightly larger than the
point size of the type. For example, a single line of 12-point
text usually occupies about 15 points of vertical space when
you specify 100 percent or Single Space leading. Therefore,
double spaced, or 200 percent, leading for 12-point text
increases the line spacing to about 30 points.
Leading specified in points is independent of the type size
and normal leading of the typeface. The space from baseline
to baseline is exactly the number of points specified, regard-
less of the size of the type. Using point size leading lets you
maintain consistent line spacing, and fit text to specific
space requirements. For example, you have 10 lines of text,