JPEG Optimization Guide

Image compression is found in every native media format. However, the difference between GIF, PNG, and JPEG is how the information is compressed and display on-screen.

Avoid saving at 100%

You should almost never save your JPEG images at 100% quality. This will not produce the most possible “optimized” image. It actually calculates through an optimization limit formula which increases your file sizes exorbitantly.

Even compared to 90% or 95% quality you’ll see a significant drop in file size. Read more here

How low is too low?

The values you choose for optimization are completely dependent on the project at hand. You’ll have to consider which types of graphics will output the highest file sizes – these are the ones which really need compression.

The values you choose for optimization are completely dependent on the project at hand. You’ll have to consider which types of graphics will output the highest file sizes – these are the ones which really need compression.


TinyJPG

TinyJPG is a browser-based web app where you can upload an image and it all unnecessary extra bytes to optimize file size. It’s 100% lossless meaning the image quality will not degrade at all. You can upload upto 20 images with 5Mb all at once.

IrfanView

This free software for Windows allows you to view and optimize any set of large images. I especially like this software because it supports batch conversion from images in multiple directories. You can apply the same functions over hundreds of JPEG images automatically.

About Angie Fox

New York Times bestselling author Angie Fox writes sweet, fun, action-packed mysteries..

Related Posts