The Textarea Card should be used to make your PDFs fillable. Drag this card onto the page from the side menu:
The blue Textarea Menu appears when you click on a Textarea Card within the page. These are the available options in the Textarea Card menu:
Choose the color of the text within the Textarea Card.
Choose the typeface that will be used for the Textarea Card.
Increase or decrease the size of the text within the Textarea Card.
This is the text that appears above the fillable box on the page.
Change the color of the border around the fillable box.
Change the height of the fillable box.