Bitmap fonts are of high quality, but are only usable at certain predefined sizes.
Any attempt to make a bitmapped font an unsupported size will either have no effect or will result in the font pixelating. Vector fonts are now largely obsolete, but they provided low quality scalable fonts with Windows 3.0 . Adobe Type Manager is a third party extension to Windows that allows the use of Postcript type 1 fonts, which provide high quality scalable fonts both for the display and printing. If such fonts are used, then the ATM must be installed on all delivery machines. Truetype is a technology for providing high quality scalable fonts that was developed jointly by Apple and Microsoft.