JPEG is a format for compressing image files

JPEG is a format for compressing image files JPG is a file extension for a lossy graphics file. . JPEG stands for Joint Photographic Experts Group who created the standard. JPG files have 2 sub-formats, JPG/Exif (often used in digital cameras and photographic equipment), and JPG/JFIF

PNG Portable Network Graphics is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format. PNG supports palette-based images, grayscale images, and full-colour non-palette-based RGB/RGBA images

Web template A web template system in web publishing lets web designers and developers work with web templates to automatically generate custom web pages, such as the results from a search. This reuses static web page elements while defining dynamic elements based on web request parameters.

Hashtag • What is hashtag • A hashtag is a label for content. . Hashtags are used mostly on social media sites. They rocketed to fame on Twitter. But now you can use hashtags on other social platforms, such as Instagram, Facebook, Pinterest and Google+. Anyone sharing content on a relevant topic can add the hashtag label to their message

Image optimisation • What is image optimisation? • The images you create in programs like Photoshop and Illustrator look amazing but often the file sizes are very large. . Optimizing your images for the web means saving or compiling your images in a web friendly format depending on what the image contains.

Thumbnail • What is a thumnail? A Thumbnail is a term used by graphic designers and photographers for a small image representation of a larger image, usually intended to make it easier and faster to look at or manage a group of larger images.