Sometimes you need a PDF page as an actual image, to drop into a slide deck, post online, or preview without opening a PDF viewer. This tool renders each page of your PDF to a PNG or JPG image directly in your browser, using the same rendering engine that powers Firefox and Chrome's built-in PDF viewers.
PNG is lossless and better for pages with text or sharp lines; JPG is smaller in file size and better suited for pages with photos or complex graphics.
Yes, use "Custom Pages" and enter a page list or range, like "1-3, 5, 8-10".
High resolution renders at a higher scale, useful if you plan to print the image or zoom in without it looking blurry. Standard is smaller and faster for typical screen use.