You can buy these files in the Silhouette Store sometimes find them for free on blogs see my list. Common raster image files include png jpg and gif formats. JPEG images are used in photography applications and SVG is used when high resolution images are required.
Jpg or jpegan alternate spelling of the file extension stands for Joint Photographic Experts Group.
Try zooming in close and you will see that it remains sharp. A svg Scalable Vector Graphics file is a vector image file format. File size JPEGs are significantly smaller than their PNG counterparts when you compare JPG and PNG of the same resolution. If you have a photo you want to upload to your website its best to save it as a jpg.