Which statement is NOT an advantage of PNG?

Which statement is NOT an advantage of PNG?

• A. Lossless compression
• B. Transparency
• C. Lossy compression
• D. Small file sizes on all images

Answer: (C)

PNG is defined by lossless compression combined with support for transparency, which makes it ideal for images with text, sharp edges, or overlays where you need exact pixel data and an alpha channel. The statement that isn’t an advantage is that it uses lossy compression—PNG does not; it preserves every bit of information during compression. That’s why lossy compression is not an attribute of PNG. Also, while PNG can have small file sizes for simple graphics, it isn’t guaranteed to be small for all images; photographs with lots of color variation can be larger than comparable JPEGs.

PNG is defined by lossless compression combined with support for transparency, which makes it ideal for images with text, sharp edges, or overlays where you need exact pixel data and an alpha channel. The statement that isn’t an advantage is that it uses lossy compression—PNG does not; it preserves every bit of information during compression. That’s why lossy compression is not an attribute of PNG. Also, while PNG can have small file sizes for simple graphics, it isn’t guaranteed to be small for all images; photographs with lots of color variation can be larger than comparable JPEGs.