PDF Page Setup Options Output drop-down menu > Properties > Image File tab > PDF file output > Options button > File Format Options dialog box > PDF Page Setup button. Define how your PDF appears on the page. Option Description Page size Select the size of page for the PDF. Use the dropdown menu to select a preset size or select Custom and manually enter the height and width of the page in inches. Margins Select the size of the margins for the PDF in inches. Orientation Define the page orientation to portrait or landscape. Image Layout Define the capture to shrink to fit on one page or allow the capture to stay its original size and span multiple pages. Preview Preview the PDF page setup.