There is no direct way to export different windows areas to different pages. But there are two other ways:
You can create several layouts in the drawing, put the viewports with necessary areas on these layouts, so you will be able to export each layout to different page of the pdf.
You can try PdfPublish to do that. With Publish you can export the drawing into pdf and then put the references on the drawing into several pages of your pdf or even into several places of the one page, and then apply the clipping on them (https://www.opendesign.com/blog/2018/december/publishing-2d-cad-objects).