Which file format supports transparency and uses lossless compression?

Which file format supports transparency and uses lossless compression?

• A. JPEG
• B. TIFF
• C. PNG
• D. BMP

Answer: (C)

When you need both transparency and lossless compression, the important idea is having an image format that preserves every detail while also letting pixels be partially or fully transparent. PNG is built for this: it uses lossless compression so no image data is discarded, and it includes an alpha channel that enables transparency. JPEG, on the other hand, uses lossy compression, which sacrifices some data for smaller files and it doesn’t support standard transparency. TIFF can also handle lossless compression and alpha channels, but PNG is the most common and straightforward choice for transparent graphics, especially on the web. BMP is typically uncompressed or uses simple compression and isn’t designed with robust transparency in mind. So the format that best fits both requirements is PNG.

When you need both transparency and lossless compression, the important idea is having an image format that preserves every detail while also letting pixels be partially or fully transparent. PNG is built for this: it uses lossless compression so no image data is discarded, and it includes an alpha channel that enables transparency. JPEG, on the other hand, uses lossy compression, which sacrifices some data for smaller files and it doesn’t support standard transparency. TIFF can also handle lossless compression and alpha channels, but PNG is the most common and straightforward choice for transparent graphics, especially on the web. BMP is typically uncompressed or uses simple compression and isn’t designed with robust transparency in mind. So the format that best fits both requirements is PNG.