1, online jpg is the meaning of static pictures, often used by netizens to add in the back of the text, in fact, it is equivalent to this paragraph of text that can be imagined as an emoticon.

2, jpg is a picture format, jpg suffix is generally in the adjective after the text + jpg description of the form of text to give a sense of picture, more vivid.

3, itself JPG refers to the JPEG format, which is a product of the JPEG standard, which was developed by the International Organization for Standardization (ISO), is oriented towards continuous tone still image of a compression standard.JPEG format is the most commonly used image file format, with the suffix .jpg or .jpeg.