Image Transparency Guide: Alpha Channels, PNG, and WebP
Transparent images use an alpha channel to define see-through areas. Which formats support transparency and how to preserve it.
Published:
Tags: image, transparency, beginner
Image Transparency: Alpha Channel, PNG, and WebP Transparency in images is one of those things that seems simple — some parts of the image are visible, some aren't — but has more depth once you start working with it. Understanding exactly how transparency works, what the alpha channel is, and which image formats support it helps you avoid common mistakes like the dreaded white box around a logo, or a transparent background that becomes solid black in an unexpected context. What Is Transparency in Images? When we talk about transparency in an image, we mean that some pixels are partially or completely invisible. This lets the image "float" on top of whatever is behind it — a different-colored background, another image, a web page, a document — without showing a solid border or background…
All articles · theproductguy.in