Save rotated page to the existing Tiff file

GroupDocs.Viewer Product Family
1

I need to write some code that will allow a user to load a tiff document to the screen (.NET Forms) and view it page by page.
They might choose to rotate one of the pages.
How would I save the document after they rotate one of the pages?
This is my code so far:

    Private Property MemoryPageStreamFactory As MemoryPageStreamFactory
    Private Property tiffViewer As Viewer
    Private Property jpgViewOptions As JpgViewOptions

    Private Sub LoadPageIntoViewer(ByVal PageNumber As Integer)

            Dim FileName As String = "FilePath/FileName.tiff"
            tiffViewer = New Viewer(FileName)

            MemoryPageStreamFactory = New MemoryPageStreamFactory()
            jpgViewOptions = New JpgViewOptions(MemoryPageStreamFactory)
            tiffViewer.View(jpgViewOptions, PageNumber)

            MemoryPageStreamFactory.Stream.Position = 0
            pictureBox.Image = System.Drawing.Image.FromStream(MemoryPageStreamFactory.Stream) 

            Dim tiffViewInfo As Results.ViewInfo = tiffViewer.GetViewInfo(ViewInfoOptions.ForJpgView)
            txtPages.Text = tiffViewInfo.Pages.Count

    End Sub

    Private Sub btnRotate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRotate.Click

            Dim selectedPage As Integer = txtPage.Text

            jpgViewOptions.RotatePage(selectedPage, Rotation.On90Degree)

            tiffViewer.View(jpgViewOptions, SelectedPage)
            MemoryPageStreamFactory.Stream.Position = 0
            pictureBox.Image = System.Drawing.Image.FromStream(MemoryPageStreamFactory.Stream)

    End Sub

    Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
            ' Save the tiff. If possible, it would be best if we can save the rotations now, instead of each time they click the Rotate button
    End Sub
2

@mwbwc

Thank you for adding your code.

How would I save the document after they rotate one of the pages?

GroupDocs.Viewer does not modify a source document when you call any methods. Think of GroupDocs.Viewer as function that accepts a document and outputs HTML, image, or PDF.

You rather want to save output page somewhere or page rotation angle. So, next time you render a page you’ll set it the stored rotation angle. Is it suitable for you?

3

Yes, that works
Thank you

4

@mwbwc

You’re welcome!