I'm having a similar problem. I have edited the default master form to reflect how I want all invoices and estimates to appear and work for me. When I print or send them to customers, they do not look anything like what I am previewing. I found that if I go into the right column of either invoice or estimate where you choose to save, download, print, email etc .... under design, it is automatically set to Modern (which is what I believe to be the issue). When I choose Standard (which is my default) it sends and prints exactly how it looks when previewed. Is there a way to set design automatically to Standard so I don't have to manually change that in every single estimate or invoice transaction?