Determines whether the file specified by its path is a PDF file by inspecting the first eight bytes of the data. If the file header has the form «%PDF-x.y» the function returns the version number as integer (e.g. 14 for PDF 1.4). If the file header is invalid or inaccessible for any reason, 0 is returned. The function never throws an exception.

public static int TestPdfFile(
	string path
)

Public Shared Function TestPdfFile ( 
	path As String
) As Integer

public:
static int TestPdfFile(
	String^ path
)