| Overload | Description |
|---|---|
| SaveAsPNG(Int32,String) | Saves a GdPicture image as Portable Network Graphics image. |
| SaveAsPNG(Int32,String,Int32) | Saves a GdPicture image as Portable Network Graphics image. This overload supports compression level customization. |
| SaveAsPNG(Int32,String,Int32,Boolean) | Saves a GdPicture image as Portable Network Graphics image. This overload supports interlacing and compression level customization. |
