Interactive image-format lesson

Where did my transparency go?

PNG can keep transparent and partly transparent pixels. JPEG cannot. Pick a solid background below to see how the same artwork is flattened before JPEG export.

JPEG background color JPEG quality: 85%

Source PNG

Checkerboard shows the transparent pixels.

Before JPEG export

Transparency is blended with your chosen color. Quality affects the downloaded JPEG.

JPEG background: #f4e9d8. Quality: 85%.