Requested ptg filetype

[space patroller]

This filetype is used by ArtRage 4. This app is perhaps the most powerful and popular pure drawing programs this side of Adobe Illustrator and would work very well with IrfanView's filters and things like color correct, practically doubling the power of both programs if files could be bounced back and forth for different tasks. I think it is a private filetype

[Bhikkhu Pesala]

ArtRage supports layers, while IrfanView does not. It uses the Windows clipboard bitmap format when loading images. You can export your Artrage images in other formats for viewing with IrfanView.