C# - Resizing Image To Fit On A Printed Page?

I am trying to print an image (from file) to a the printer using a PrintDocument.I am re-sizing my image so that it is scaled to be full page on the printout when I print this the image is cropped slightly.

EDIT 2:I am using the margins to calculate the area to use:

With printSettings.DefaultPageSettings
Dim areaWidth As Single = .Bounds.Width - .Margins.Left - .Margins.Right
Dim areaHeight As Single = .Bounds.Height - .Margins.Top - .Margins.Bottom
End With

The bounds of the page are 1169x827 (A4) and with the margins it is 1137x795.After resize my image size is 1092x682 and I am using the following code to draw it:

e.Graphics.DrawImage(printBitmap, .Margins.Left, .Margins.Top)

The annoying thing is that when I print to the PrintPreviewDialog it is scaled perfectly but when I print the exact same code to the actual printer it does not fit.

EDIT 3:Full code can be found at this url Usage:

Dim clsPrint As New clsPrinting
With clsPrint
.Landscape = True

[code]....