PDF cleanup often means removing a few pages: a blank scan, an old instruction sheet, a duplicate invoice, or a page with private information that should not be shared.
The important part is page counting. Use the PDF's actual page order, not the printed page label. Enter ranges like 1, 3-5, 9, then download a new PDF with those pages removed.
Delete Pages keeps the remaining pages as they are, so you do not lose text quality or image resolution.