De acordo com este tópico do fórum , existem algumas opções:
I usually paste it into 'TextEdit' and making sure that TexEdit is displaying fonts as Plain Text. Then copy the links or texts from TexEdit and paste it into Pages.
Open the Inspector palette. Select the second last tab called "Link Inspector", then highlight the link itself. Click the "Enable as a hyperlink" checkbox to off and it will disappear.
In Pages preferences, there's an option on the "Auto Correct" tab to "Automatically detect email and web addresses". Untick that and it shouldn't happen if what you're pasting contains a URL or an email address.
Espero que ajude.