: A specific 8-byte sequence ( 89 50 4E 47 0D 0A 1A 0A ) that identifies the file as a PNG.
: The image header, containing width, height, and color depth. IDAT : The actual image data. IEND : Signals the end of the image stream. Performance & Optimization Tips Untitled.png
: Unlike JPEGs, PNGs do not lose data or quality when saved and edited repeatedly. : A specific 8-byte sequence ( 89 50
The PNG format was released in 1994 as a robust alternative to GIF and a higher-quality option than JPEG. IEND : Signals the end of the image stream
: PNGs can handle transparent and semi-transparent backgrounds, making them the preferred choice for logos, icons, and UI elements.
: Be mindful that large transparent areas can significantly increase file sizes; only use transparency where necessary. PNG: The Definitive Guide - O'Reilly