How can I create forms with Pages?
Is there a way to create forms within Pages to export to PDF?
MacBook Pro with Retina display, OS X Yosemite (10.10.5)
No. Not a feature in any Pages product. The free LibreOffice Suite (Writer) has a Forms builder, allows you to build in-line forms, and export those forms to PDF. The LibreOffice Writer user guide has an entire chapter (15) devoted to forms.