How do I convert JPEG to progressive?

It can also convert images to several different formats. Install it, and open an image with Irfanview. Click the save icon, and select the JPEG format to save the image to. A ‘Save Options’ window will open with a ‘Save as progressive JPG’ option.

What is Progressive JPEG format?

A progressive JPEG image is encoded differently than a standard or baseline JPEG image. It loads in successive waves until a clear picture is formed. This can improve a website’s performance as the images seems to be loading faster.