MS-Access Combine multiple PDFs in VBA

I have to produce a 5-page pdf I have created each page as an individual report as an Access report which can be printed as a pdf. I want to create one pdf that contains all 5 pages, without any display or interaction with the user until they print the combined pdf. I want to do it in VBA from a button on a form.

I have attached an example. It is a Word document but I am not using it as a mail merge.