Google has just rolled out a nice new feature for Gmail that lets you click to view images within an email in a full-screen mode.
You might be familiar with the full-screen mode for Gmail on the web, which was already available for images and documents attached to emails. Now you’ll get the same experience when clicking on emails contained within the body of an email:
New! View images within your message full-screen
Similar to attachments, you can now click on large images within a message to see them full-screen in Gmail on the web. Click the Google Drive button to save the images directly to Drive or the arrow button to download them to your computer.