Reading Page Size Of Existing PDF?

I need to read PDF Page size of an existing PDF. I have both itextsharp and acrobat used in my project. This is what I've tried.

Dim pagesize As Rectangle
Dim reader As PdfReader = New PdfReader(formfile)
pagesize = reader.GetPageSize(1)
If pagesize.Width = "396" Then
Testing = "Y"
Else
Testing = "N"
End If

I get page size as = {Rectangle: 396x309.6 (rot: 0 degrees)}
And Testing comes out = Y
This seemed great at first, until I found that I get those exact same values regardless of how big the pdf is...so now i'm back to square one not knowing where to turn. Interesting thing to note though When I hover my mouse over reader.GetPageSize(1), nothing shows up while debugging, but pagesize does get the value stated above.