Form Field Support in Our iOS Viewer
To fill in a text form element, tap it and then type text using either the onscreen keyboard or an attached hardware keyboard. Then tap either the Done button above the keyboard or any blank area on the page to deselect the form element, which will commit the changes. If the field has formatting validation rules, these will be applied on deselection. An alert will be shown if the entered text doesn’t pass validation rules.
To set the value of a choice form element (a list or combo box), tap the element, and then select an item from the list, or type in a custom item.
To enable or disable a checkbox form element, tap it to toggle its state.
To set the selection of a radio button form element, tap the desired item.
To add a signature to a signature form element, tap it and then use the Electronic Signatures UI.
While a form element is selected (focused), the left and right arrows above the keyboard may be used to move the focus sequentially between all the form elements on the page.