Using the JPEG File Format for Your Digital Photos
The JPEG file format is standard on every digital camera. And you can convert files to JPEG from other formats on your computer. JPEG is the leading camera format because it creates Web-friendly photos with small file sizes. If you want your digital picture in JPEG format:
Keep picture quality in mind.
To trim file size, JPEG applies lossy compression, a process that eliminates some original image data. This figure shows the difference in photo quality.
Use the JPEG setting with the smallest amount of compression.
Most cameras offer a JPEG setting that applies only a little bit of compression, which significantly reduces file size without producing noticeable damage.
Work with your camera’s JPEG options.
Look at your camera’s manual to figure out what JPEG options you have. Typically, compression settings are given vague monikers, such as Good/Better/Best or High/Normal/Basic.
The better the quality, the less you compress the image — and the larger the file size.
Adjust your camera’s resolution settings.
Test your camera’s JPEG compression settings with each resolution setting to find the best quality at the smallest file size.