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A bitmap graphic may be referred to as a raster graphic. When viewed at 100%, each dot corresponds to an individual pixel on a display. A file with the .bmp extension is an uncompressed bitmap. Other raster graphic types, known as compressed bitmaps, include JPEG, GIF, and PNG. A bitmap is not a vector graphic. If a bitmap image is enlarged it will always look blocky because each dot will take up more than one pixel.=== Many Graphic File Formats ===Including proprietary types, there are hundreds of image file types. Some of the formats that are most often used for purposes including web pages, email, digital photography, and desktop publishing are discussed on this page.