This is a very big saving on file size, while still maintaining reasonably good quality. In this case, by setting the quality to 8, the file size goes from 165.8K to 84.5K. Click on the Preview check box so that you can see how changing the quality will affect the image. So we need to make a compromise between file size and quality. The higher the quality, the higher the file size. These attributes are directly related to each other. Click Save and the JPEG Options dialog box opens.įrom here you can change the quality and file size of the file. Choose File > Save As and on the dialog box, choose JPEG as the file format and type in a name for your new file. I’ve resized mine to 900 pixels wide in preparation for my photo blog.Ģ. In this example, I want to save my photograph as a JPEG.ġ. Save As allows you to save an image file in many different formats. To show you the difference, I’m going to save the same image file using both commands. If you’re new to Photoshop, you may not be aware that you can save files as JPEGs, GIFs and PNGs using the “ Save For Web” command as opposed to just using the “Save As” command under the File menu. It is available as PNG-8 and PNG-24, with PNG-24 being the higher quality and higher file size of the two. PNG format is a little like the best of both JPEG and GIF. It uses a palette of 256 colors to represent the image and supports background transparency. The GIF format is most effective at compressing solid-color images and images with blocks of repetitive color, such as line art, logos, and illustrations with type. It can represent images using millions of colors. The JPEG format is designed to preserve the variations of continuous-tone images such as photographs. JPEG and GIF are the two most common formats used on the web, with the PNG format catching up. One vital aspect of a successful web site is its ability to load quickly. Broadband may be allowing us to use larger images online, but it’s still important to remember the visitors who aren’t on broadband and optimize all images on a web site. The Save For Web command in Photoshop allows you to optimize your images for use on the web.