Designers still ask for page images. PDF to JPG renders each page on a canvas at a 2× scale and encodes JPG or PNG.
Use PNG for UI screenshots and line diagrams; JPG for photo-heavy pages. A zip lands when there are many pages.
If the goal is editable text, this is the wrong tool — use PDF to Word or OCR. If the goal is a slide, PDF to PowerPoint wraps the same render in a PPTX.