NormalizePage Method (GdPicturePDF)

In This Topic

Normalizes the currently selected page in the loaded PDF document, in other words all the page boundary boxes are adjusted to the physical size of the page (means the CropBox property is equal to the MediaBox property) and the page's rotation is reset to 0. The actual page rendering is not changed.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function NormalizePage() As GdPictureStatus

public GdPictureStatus NormalizePage()

public function NormalizePage(): GdPictureStatus;

public function NormalizePage() : GdPictureStatus;

public: GdPictureStatus NormalizePage();

public:
GdPictureStatus NormalizePage();

Return Value

A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.

We strongly recommend always checking this status first.

Remarks

This method is only allowed for use with non-encrypted documents.

Just to remind you that the purpose of this method is to prepare the content of the current page so that subsequent drawing operations are at the expected position on the page. This method should be used before the drawing operations, which ignore the page's rotation and cropping.

Example

How to normalize all pages in the PDF document.

VB.NET
C#

Dim caption As String = "Example: NormalizePage"
Dim gdpicturePDF As New GdPicturePDF()
If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
    Dim count As Integer = gdpicturePDF.GetPageCount()
    Dim status As GdPictureStatus = gdpicturePDF.GetStat()
    If status = GdPictureStatus.OK Then
        For i As Integer = 1 To count
            status = gdpicturePDF.SelectPage(i)
            If status = GdPictureStatus.OK Then
                status = gdpicturePDF.NormalizePage()
                If status <> GdPictureStatus.OK Then
                    MessageBox.Show("The NormalizePage() method has failed for the page number " + i.ToString() + " with the status: " + status.ToString(), caption)
                    Exit For
                End If
            Else
                Exit For
            End If
        Next
        If status = GdPictureStatus.OK Then
            If gdpicturePDF.SaveToFile("test_NormalizePage.pdf") = GdPictureStatus.OK Then
                MessageBox.Show("The pages have been normalized successfully and the file has been saved.", caption)
            Else
                MessageBox.Show("The pages have been normalized successfully but the file can't be saved.", caption)
            End If
        End If
    End If
    If status <> GdPictureStatus.OK Then
        MessageBox.Show("The example HAS NOT been followed successfully. The last error status is: " + status.ToString(), caption)
    End If
Else
    MessageBox.Show("The file can't be loaded.", caption)
End If
gdpicturePDF.Dispose()

string caption = "Example: NormalizePage";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
    int count = gdpicturePDF.GetPageCount();
    GdPictureStatus status = gdpicturePDF.GetStat();
    if (status == GdPictureStatus.OK)
    {
        for (int i = 1; i <= count; i++)
        {
            status = gdpicturePDF.SelectPage(i);
            if (status == GdPictureStatus.OK)
            {
                status = gdpicturePDF.NormalizePage();
                if (status != GdPictureStatus.OK)
                {
                    MessageBox.Show("The NormalizePage() method has failed for the page number " + i.ToString() + " with the status: " + status.ToString(), caption);
                    break;
                }
            }
            else break;
        }
        if (status == GdPictureStatus.OK)
        {
            if (gdpicturePDF.SaveToFile("test_NormalizePage.pdf") == GdPictureStatus.OK)
                MessageBox.Show("The pages have been normalized successfully and the file has been saved.", caption);
            else
                MessageBox.Show("The pages have been normalized successfully but the file can't be saved.", caption);
        }
    }
    if (status != GdPictureStatus.OK)
        MessageBox.Show("The example HAS NOT been followed successfully. The last error status is: " + status.ToString(), caption);
}
else
    MessageBox.Show("The file can't be loaded.", caption);
gdpicturePDF.Dispose();

Reference

GdPicturePDF Class
GdPicturePDF Members
GetPageCount Method
SelectPage Method
GetPageHeight Method
GetPageWidth Method
NewPage(Single,Single) Method