This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The SVGAltGlyphElement.format property is a DOMString that defines the format of the given font. It has the same meaning as the 'format' property of SVGGlyphRefElement property. If the font is in one of the formats listed in CSS2([CSS2], section15.3.5), then its value is the corresponding <string> parameter of the font.


string = myGlyph.format;
 myGlyph.format = string;


The format values listed below are taken from CSS2([CSS2], section15.3.5).

String Font Format Examples of common extensions
truedoc-pfr TrueDoc™ Portable Font Resource .pfr
embedded-opentype Embedded OpenType .eot
type-1 PostScript™ Type 1 .pfb, .pfa
truetype TrueType .ttf
opentype OpenType, including TrueType Open .ttf
truetype-gx TrueType with GX extensions -
speedo Speedo -
intellifont Intellifont -


myGlyph.format = "truedoc-pfr";


Specification Status Comment
Scalable Vector Graphics (SVG) 1.1 (Second Edition)
The definition of 'format' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Chrome Full support 1Edge Full support ≤79Firefox Full support 4IE ? Opera Full support 10.6Safari Full support 4WebView Android Full support 37Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 11Safari iOS Full support 4Samsung Internet Android Full support 1.0


Full support  
Full support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

See Also