JPG，也称为JPEG，是一种文件格式，可以包含10:1到20:1有损图像压缩技术的图像。通过压缩技术，它可以在不损失图像质量的情况下减小图像大小。因此，它被广泛应用于网络出版中，以减少图像大小，保持图像质量。
JPG, also known as JPEG, is a file format that can contain image with 10:1 to 20:1 lossy image compression technique. With the compression technique it can reduce the image size without losing the image quality. So it is widely used in web publishing to reduce the image size maintaining the image quality.
