Text Viewer SDK ActiveX Control ReferenceMethods ZoomtoviewerKeepRatio Text Viewer ActiveX Control ZoomtoviewerKeepRatio Fit the image to text viewer and keep aspect ratio. Public Function ZoomtoviewerKeepRatio() No ParameterNo Return ValueExample VB.NET SyntaxAxTextReaderAx1.ZoomtoviewerKeepRatio() Visual Basic SyntaxTextReaderAx1.ZoomtoviewerKeepRatio