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DocumentViewer.Zoom Property

Gets or sets the document zoom percentage.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

member Zoom : float with get, set

<object Zoom="double" .../>

Property Value

Type: System.Double
The zoom percentage expressed as a value, 5.0 to 5000.0. The default is 100.0, which corresponds to 100.0%.

Identifier field


Metadata properties set to true


Setting this property causes the DocumentViewer control to zoom to the specified value.

The Zoom property must be a value between 5.0 to 5000.0 (inclusive), which corresponds to a percentage range 5.0% to 5000.0%.

Actions or commands that require a layout update may change the Zoom property setting. For example, changing the value of MaxPagesAcross, calling the FitToHeight method, or invoking the FitToHeightCommand can cause the Zoom setting to change.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.