Set line spacing

For a text field created in Acrobat, there is no line spacing control unless you allow rich text formatting. But the user will be able to alter it. To set it up, create a multiline rich-text field, place the cursor in the field, get the properties bar to show (Ctrl+E), click the "More" button on the right, select the Paragraph tab, and you can specify the line spacing.

Hello,

I am trying to create a multi line text field with very specific line spacing. I am able to change it to exactly what i want in the properties toolbar More button, however, when i click outside of the specific text box i am formatting, and then go back to it, the line spacing has reset itselt to default single line spacing. I cannot make it stay on the line spacing that i set it to. Any ideas?

THanks