JPG file extension

File extension jpg is related to JPEG (Joint Photographic Experts Group) image file format is mostly used for bitmap images (photos, pictures etc.). Loss JPEG compression significantly reduces image file size and high compression level also quality of image. JPEG is the best image format for photos and pictures with high number of colors for use on the internet or e-mail.

JPEG is a bitmap compression format for images. The proper abbreviation is JPEG, but DOS-based computers could only take a 3-character extension, so you will often see the shortened version: JPG. JPEG is based on a 24-bit color palette, but it is lossy, which means that it drops information that is compressed out. Compression ratios may range from 10:1 to 20:1 and most graphic application programs (such as Adobe Photoshop) allow you to choose the compression rate. Obviously, the more compressed, the more data is lost, but the less compressed the larger the files size of the image. It takes considerable experience and skill to play around with different modes and pallettes as well as compression ratios to get a good quality result with a relatively small JPEG file size. JPEG is typically used for complex images and photographs. It supports 16.7 million colors.
 

How to open JPG files:

Use any graphic editor/viewer available. JPG is commonly used file format for pictures and photos.

How to convert file with extension JPG:

Use any graphics converter to convert jpg image file format into another. You can use any graphic editor to open/import jpg files and than save it into another graphic file format.

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JPG in WikiPedia

JPG in Google.com