Thread:TK-999/@comment-3298705-20150707235836/@comment-2200849-20150708182239

.bmp, .jpg, .png etc. are bitmap formats—the image stores information about the individual pixels that compose the image, so if you enlarge it too much, the pixels will be visible. By contrast, vector graphics such as .svg store information about the geometric shapes that compose the image, allowing for lossless enlargement.