JPEG File Type

In digital scrapbooking a JPEG is typically the file type used for:

• previews 
• papers 
• the copy of your scrapbook layout that you upload to galleries or for printing 

JPEGs tend to be easy to compress and can result in small files. However, you need to be careful to watch the settings of your JPEG to ensure that if you want a high quality file you get it.

Resaving over existing JPEGs cause them to degrade is image quality, so when editing photos I always recommend you save them as a PSD first, then edit and then save a new JPEG for printing or using in a layout. This also allows you to come back to the original if you ever need to.

 

JPEG is a commonly used method of lossy compression for digital photography (image). The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality.

The term "JPEG" is an acronym for the Joint Photographic Experts Group which created the standard. (read more at Wikipedia)