Thank you for reaching out about your PDF! I can understand how helpful it would be for our system to create an image for all of the pages on your document. I apologize, at this time we auto-create an image of only the first page of your PDF. With that being said, the rest of the PDF can be viewed in the document link that is automatically added to the bottom of your email campaign. Creating an image of all pages is a feature request our Product Team is still collecting feedback on. As a workaround we suggest saving these pages as different PDFs or even using an outside tool to create an image of all pages.