Use another language in Keynote
Choose an input source from the Input menu on the right side of your computer’s menu bar.
Keynote supports bidirectional text, so you can enter and edit text written from left to right (such as in English or Chinese) and from right to left (such as in Arabic or Hebrew). You can use bidirectional text in paragraphs and in a selected shape or table cell.
To use another language in your presentation, you must set up an input source for it in Keyboard preferences (in System Preferences on your Mac). For more information, in the Finder, choose Help > Help Center, then search for “input sources.”
Note: If you add a new input source to your computer while Keynote is open, restart Keynote so that it recognizes the source.
Choose an input source from the Input menu on the right side of your computer’s menu bar.
The ruler and its tab stops always match the direction of a paragraph, so when you change the text direction, the ruler also changes.
Click in a paragraph or list, or select text in a paragraph or list.
Change the language using the Input menu, or click 
in the Text pane of the Format inspector to enter text in the current language.
The insertion point moves to the other side, and the paragraph direction changes.
Enter text, then press Return at the end of the paragraph.
The next paragraph continues in the same direction. To change its direction, click , or choose the language in the Input menu.
If you select multiple paragraphs with different text directions then click , the paragraphs are formatted to match the first paragraph in the selection.
Changes to margins and indents apply proportionally to both text directions. For example, if you increase the first line indent on the right for a right-to-left paragraph, the first line indent on the left also changes for left-to-right paragraphs.
To learn how to type and edit bidirectional text and to use some of the supporting features in OS X, choose Help > Help Center in the Finder, then search for “bidirectional text.”