When you type text in a text box or shape, Keynote automatically detects a valid URL or e-mail address. (The address must be followed by a space, tab, or carriage return, or one of many punctuation, including quotes, parentheses, and square brackets.) URLs and e-mail addresses become active and underlined to indicate that they are links.
If you do not want Keynote to automatically detect the link, you can turn off smart links.
Add links to text and objects
1. Control-click the selected text or object to which you want to add a link, and then choose Add Link.
2, choose an option from the Link to pop-up menu, and then provide the information you want (such as URL or e-mail address).
Slides: links to another slide in a presentation. Click Go to slide to jump to the slide you selected.
Web page: Link to a Web page in a browser. Click Open to open the Web page.
Message: Open an e-mail message with the address and subject you entered. Click Open to see a preview of the message information.
Exit Slide Show: Exits the presentation when you click Text or an object.
3. Click outside of the dialog box to close it.
Edit and remove links
Perform any of the following actions:
Click the blue arrow in the lower-right corner of the object and make the changes accordingly.
Click the linked text and make the changes accordingly.
Turn off automatic formatting of links
You can turn off automatic formatting if you do not want to automatically format the link as a dotted text.
1, choose Edit > Replace > Show replace (from the Edit menu at the top of the computer screen).
2, in the Replace window, deselect the Smart links check box.
3. Click a button to replace any formatting links that appear in the presentation, or to replace only the formatting links that appear in the selected text.
When you open smart links for your presentation, a tick appears next to smart links on the Replace menu. You can deselect smart link to turn it off, but the existing link will not change unless you select the text that contains the link, and then follow the steps above.