In the end, print file sizes wind up being quite large (I’ve sent a 120MB multi-page catalog file to a printer before). Print files require high-resolution photographs (generally 300 dpi, or dots per inch), outlined text, bleeds for edge-to-edge color, uncompressed images, transparency settings, all sorts of crazy stuff. Preparing files for print is incredibly different than preparing them for availability on the web. This guide will show you step-by-step how to optimize images for web using both JPG and PNG formats. These files need to be clear, appropriately sized, and most importantly, small (as measured by kilobytes, not pixels). Saving a JPG for Web | Saving a PNG for WebĪs a graphic designer in mid-2016, most completed client projects wind up in digital format – graphics for the website, PDFs for download, social graphics, data sheets, brochures – rather than being sent to a printer. Skip To Section: Image File Types | How Big Should Your Image Be (KB) | How Big Should Your Image Be (WxH)