.JPG
/ˈjāpeɡ/

noun: JPG;

plural noun: JPGs
Definition:
a format for compressing image files.

“a JPEG image” a file in .JPG format.

Other Extensions:

JPEG, JPE, JFIF
What is a .JPG File
JPG or JPEG is the overall most common file format for photo storage, email attachments and large web images. JPG images are great for compressing high resolution files for faster loading and sharing.

What is a .JPG image file?

  Compressed image file:

JPG images can scale compression that can decreases file size exponentially, but increases pixilation the more the image is compressed. To put simply, high compression will make the file size smaller but quality will be lost.

  Raster:

Raster Image files contain pixels. Hi and lo resolution raster images are made up of colored pixel squares that create the image. Learn more about Raster Images here.

  Lossy Compression:

Lossy or irreversible compression means when saved as (in this case) a .JPG, the image will lose some quality that cannot be reversed.

.JPEG File Format
  • Most common file format for photo storage.
  • Raster file format
  • Lossy/Irreversible Compression
  • File Extensions: .jpeg, .jpg, .jfif, .jpe

.JPEG stands for Joint Photographic Experts Group.

Brief history of .JPG

.JPG stands for

Joint Photographic Experts Group.

Named after the committee that created the JPEG standard and other still picture coding standards.

What are .JPGs used for?

JPEG/JPG are typically used for photos, sharing graphics and large web images like banner ads.

Printing:

High resolution files with low compression, JPGs are perfect for editing and then printing.

Online:

JPEGs offer you the most flexibility with raster editing and compression making them ideal for web images that are easily downloaded.

Sharing:

JPG images can be reduced to very small sizes making them great for emailing.