PdfPrint has 3 different scaling options in printing:
1. Actual Size - it leaves page as it is. If content of the page is larger than printer printable area, than part of the content will be truncated.
2. Fit to margin - if content of the page is bigger or smaller than the printable area, content will be re-sized so it fits printer printable area.
3. Shrink to margins - if content of the page is larger than printable area, content will be downsized. If it isn't bigger than printable area, content size will stay the same.
Different printers have different printable area.
For PrintWithAdobe() method, due to technical limitations, Fit to margin behaves as Shrink to margins.