Designer ES provides ways to control the page breaks that are inserted when a form that has a flowable layout expands beyond the bottom edge of a rendered page:
Lets you prevent a single line of text from being separated from the rest of a paragraph when a page break is introduced. A widow is the last line of a paragraph that appears by itself at the top of the next page. An orphan is the first line of a paragraph that appears by itself at the bottom of a page.
When both the Keep with Next and Allow Page Breaks Within Content options are selected, the Allow Page Breaks Within Content option has precedence over the Keep with Next option.
You can set the default page break options for new forms, page break options for an individual form, and page break options for selected objects by using the various options in the Form Properties dialog box, Options dialog box, and Object palette.
See also 

About page break controls