You can easily add page numbers to your PDF document which will help you know which content is available on exactly which page on a particular PDF file.

You can delete pages from a PDF on a Mac using the Preview app. You can also add pages to a PDF in two ways with Preview.

How to Convert iWork Pages Document to a PDF. Apple iWork Pages saves your word processing documents or page layouts in its proprietary format by default. If you need to make a Pages document ...