Under Form Output, in the Render at list, select one of the following options:
Client: To render PDF forms within Adobe Acrobat or Adobe Reader. Client-side rendering improves the performance of AEM forms and applies only to PDFForm transformation.
Server: To render PDF forms on the application server.
Auto: To render the PDF form in the location specified by the dynamicRender configuration value of the XDP file. This value is the default.