WebOptions.AllowPNG Property
True if PNG (Portable Network Graphics) is allowed as an image format when you save documents as a Web page. False if PNG is not allowed as an output format. The default value is False.
Namespace: Microsoft.Office.Interop.Excel
Assembly: Microsoft.Office.Interop.Excel (in Microsoft.Office.Interop.Excel.dll)
Syntax
'Declaration
Property AllowPNG As Boolean
Get
Set
'Usage
Dim instance As WebOptions
Dim value As Boolean
value = instance.AllowPNG
instance.AllowPNG = value
bool AllowPNG { get; set; }
Property Value
Type: System.Boolean
Remarks
If you save images in the PNG format as opposed to any other file format, you might improve the image quality or reduce the size of those image files, and therefore decrease the download time, assuming that the Web browsers you are targeting support the PNG format.