How to delete pages from a PDF on your Mac computer, or add pages in 2 ways

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.
Engadget

How to combine PDF files

PDFs remain a common way to share documents because they preserve formatting across devices and platforms. Sometimes, however, you end up with several separate PDFs that would be easier to handle as a ...