Which resolution should you pick?
Resolution is measured in dpi (dots per inch). 72 dpi matches the original on-screen size and is the lightest, 150 dpi is sharp enough for screens and sharing in chats, 200 dpi is comfortable to read and fine for ordinary printing, and 300 dpi is for quality printing. The higher the dpi, the bigger the pixel size and file size.
Very large pages, such as posters or technical drawings, can exceed the browser’s canvas size limit. When that happens, the tool automatically lowers the resolution for that page and tells you.