What are the main image file formats

One, PNG format

PNG pictures store a single raster image in any color depth, platform-independent format.PNG supports high-level lossless compression, alpha channel transparency.PNG supports gamma correction, interlacing.

The JPEG format

JPEG is a lossy, direct-color, dot-matrix image.The JPEG image format was designed with the goal of compressing the file size as much as possible without compromising the quality of the image that is discernible to humans. This means that JPEG removes some of the original information from the image, i.e., it performs lossy compression.

The advantage of a JPEG image is that it uses direct color, and thanks to the richer colors, JPEG is ideal for storing photographs and for expressing more vivid image effects, such as color gradients.

Three, PDF format is Adobe for Windows, UNIX and DOS systems, an electronic publishing software. As with Postseript pages, PDF can contain vector and bitmap graphics, but also can contain electronic documents to find and navigate features.

Four, TIFF format

TIFF to store a single raster image in any color depth. TIFF can be considered the most widely supported graphics file format in the printing industry. TIFF supports optional compression and is not suitable for viewing in a Web browser.

V. BMP format

BitMap abbreviation, is lossless, both indexed and direct color support, bitmap. This is an older image format.BMP is lossless, but at the same time this image format almost no compression of the data, so the BMP format usually has a larger file size.