116.4 KB (78.3% reduction)
JPEG, also shortened to JPG, is a popular file format for storing photos and other types of images. With over a trillion photos being taken each year, that is a huge amount of data. Fortunately, the format can be compressed using "lossy" compression, which removes some data from the image, and can reduce its file size considerably. Any quality setting above around 75 should not affect how the image is viewed. The reduction in quality will barely be noticeable. This in turn, means less Internet bandwidth usage, less storage requirements, and faster transfers.
A lower quality setting will reduce the size drastically, though will also degrade the image. This can be useful when speed/storage space is more important than quality (for journalists in the field, for example).
The metadata in an image stores information about the image, that typically include what camera or software was used to creat it, the settings, and even the name of the creator. In some cases, it may be desirable to remove this information, resulting in an even smaller size.
This website provides an interface to do this conversion, resulting in much smaller, and faster images. For website developers, optimizing images with a quality setting of 80 to 85 will pass most speech checkers, for example Google's PageSpeed Insights.
To reduce your JPEG, simply click the "Select a JPEG file" button. And then click "Optimize". You will see the size savings, and a button to download the optimized JPEG. We recommend a quality setting of 85. This will result in smaller images without noticeable quality loss.
Here are some additional tips to help you better utilize your photos and images online:
Today's smartphone, point and shoot, and professional DSLR cameras typically capture photos at a resolution so high that only the biggest and highest quality displays can handle them. It is tempting and often more convenient to shoot your photos at the highest resolution, and directly upload them to your website or any other online resource. However, online images are usually loaded into fixed dimensions that are tiny compared to the shooting resolution. Such scaled images will really slow down loading of the websites displaying them.
For best speed, resize your images to match the displayed dimensions as closely as possible.
Make sure your images use the correct aspect ratio. This will ensure that they aren't stretched, or compressed in any direction. For example, a photo shot at 16:9 ratio (wide landscape or full-HD), but displayed in a square, will look compressed from both sides.
This is also useful for printing. Many printers will print in one of the standard aspect ratios. Non-standard ratio photos will get cropped, either from the top, or from the sides.
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