JPG is the most popular file format, but it has one major weakness: it does not allow transparent backgrounds. When you need a graphic to display on a different surface with no an ugly white box, you need PNG format.
Converting JPG to PNG is a simple process, but understanding when it is the right choice will save you time and avoid unnecessary file bloat.
The main purpose to transform JPG to PNG is to enable clear backgrounds. Very important for watermarks and design assets which must sit cleanly on various backgrounds.
An important thing to understand: changing a JPG to PNG does not create the alpha channel. You will need to cut out the background with a photo editor like Photoshop or GIMP.
Be careful about when converting JPG to PNG is that PNG images are typically bigger than their JPG counterparts. Because PNG applies lossless compression which stores complete image information.
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