Adobe InDesign CC 2015 - Manual (Page 203)

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Last updated 6/6/2015
Automatic Kashida insertion
In Arabic, text is justified by adding Kashidas. Kashidas are added to arabic characters to lengthen them. Whitespace
is not modified. Use automatic Kashida insertion to justify paragraphs of arabic text.
Select the paragraph and from the Paragraph panel (Window > Type & Tables > Paragraph), choose a setting from the
Insert Kashida drop-down list. The options available are: None, Short, Medium, Long, or Stylistic. Kashidas are only
inserted if the paragraph is justified. This setting is not applicable for paragraphs that have alignment settings.
To apply Kashidas to a group of characters, select the characters and choose Kashidas from the Character panel menu.
Ligatures
You can automatically apply ligatures to character pairs in Arabic and Hebrew. Ligatures are typographic replacement
characters for certain letter pairs if they are available in a given Open Type font.
When you choose Ligatures from the Character panel menu or Control panel menu, a standard ligature defined in the
font is produced.
1 Select text.
2 Choose Ligatures from the Character panel menu or the Control panel menu.
However, some Open Type fonts include more ornate, optional ligatures, which can be produced when you choose
Discretionary Ligatures. These ligatures are found at Character panel > OpenType > Discretionary Ligatures.