What is an extension? Easy to understand explanation of the differences between JPG, PNG, GIF and WebP
An extension that is one of the essential information for the production of the home page.
The extension refers to characters like “.jpg” and “.png” attached to the data name, but “I really don’t know what the difference is …” “By the way, I was too worried about Some people may say:” There is no such thing. ”
This time, I will explain in an easy to understand way the points of “what is the extension in the first place”, “how to read jpg” and “the advantages and disadvantages of each”.
What is an extension?
Image extension
“JPEG” which is ideal for photographic data
High-quality “PNG” for the web
“GIF” that works
even though it’s lightweight “WebP” Newcomer promising next-gen that can do anything
You can be at the forefront of “AVIF”
abstract
What is an extension?
The extension is a character such as “.jpg”, “.png”, or “.exe” that is displayed at the end of the data name. This represents “what kind of data is this data” and “what application should be used to open it.”
It’s like the nationality of the data, as we would say, “I’m from Japan, so let’s speak Japanese.” “Since .pptx is a PowerPoint extension, this data is PowerPoint. Let’s open it using.” The extension is important to open a file, right?
So if you accidentally delete the extension when renaming the file, or forcibly change it to a different one, you won’t be able to open the data, so be careful.
Rewriting the extension of an image from “.jpg” to “.gif” without using image editing software is like changing your nationality by handwriting directly on your passport without the formal procedure.
The extension may not be familiar to those who primarily use smartphones. However, just because it is a specification that is not shown to the user, all the photos they took, the apps they downloaded, the images shown on the home page, and the site have extensions.
Image extension
The extension indicates the type of data, but the extension of the image is especially important to use it correctly. The right one depends on the number of colors and the medium to be displayed (be it a site or a paper).
Also, unlike other extensions, one of the features is that there is almost no “open only with this software” with basic image data. In the nationality analogy mentioned above, it is an image of “from a country that uses multiple languages.”
