Pros and cons of the JPG format

Advantages and disadvantages of the JPG format

Without a doubt, JPG, also known as JPEG, is one of the most widely used digital image formats worldwide. This format has its advantages, as well as some disadvantages, in this article we will understand how this image format was born and we will explain some of its characteristics.

Name's origin

Initially, the name J.P.E.G. is the acronym in English for Joint Photographic Experts Group, which refers to the group of experts in the area of ​​photography and digital imaging who created this digital image coding and compression standard.

Many tend to get confused and think that JPG and JPEG are different formats, but the truth is that both names refer to the same image format.

JPEG is the name of both the image format, as well as the compression method used in this image format.

What are their characteristics?

By nature, JPG is a lossy compression encoding, which means that every time an image is saved in this format, you can choose the compression level of it, and the higher the compression level, the greater the quality loss. and image resolution.

In addition to this, it is important to remember that in the JPG format compression is cumulative, which means that if an image has already been previously compressed, then on the second compression attempt, the image quality will be reduced even more than the first time. , resulting in a considerable loss of resolution.

As a rule, it is advised to use a compression level that maintains a quality equal to 60.


In conclusion, JPG and JPEG refer to the same image format. JPG is a format that allows a high level of compression, the only detail is that the compression is accompanied by a loss of cumulative resolution. However, for large, high-resolution images, the JPG format may be the ideal choice to reduce size at the expense of a slight loss in resolution.

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