PDF to JPG turns each page of a PDF into a JPG photo. JPG is the format every phone, messaging app, website form and slide tool accepts, so it is the easy way to post a page on social media, attach a certificate to an application form, or drop a slide into a presentation. This tool draws each page with Mozilla's pdf.js engine (the same one Firefox uses to show PDFs) and saves it as a JPG at the resolution you choose: 72 DPI for screens, 150 DPI for sharp on-screen reading, or 300 DPI for print.
You choose which pages to convert by typing a range such as 1-3, 7 or by tapping page thumbnails, and set the JPG quality from 50% to 100%. One page downloads as a single image; several pages come as one ZIP. Password-protected PDFs work once you type the password, and the password never leaves your browser tab.
Limits: a JPG is a picture, so the text in it can no longer be selected, searched or edited. JPG compression can leave faint smudges around small text; for pages that are mostly text or line drawings, PDF to PNG keeps edges crisper. Very large pages (posters, architectural drawings) are rendered a little below the chosen DPI so each image stays under about 16 megapixels, the most that browsers on iPhone can draw.