Specifies whether PNG (Portable Network Graphics) is used as an image format on a Web page.
Contained In
Remarks
If <o:AllowPNG/> is specified, PNG format is used.
As opposed to any other file format, images saved in PNG might improve in quality and their file size might reduce (decreasing download time) when targeted browsers support the PNG format.
See the example in the OfficeDocumentSettings element topic.