How to rotate the PDF Document when its is viewed in PDF Viewer Control?
How to rotate the PDF Document when it is viewed in PDF Viewer Control?
We do not support document rotation when it is viewed in PDF Viewer Control. However as a workaround we can achieve this by assigning the rotation value in document settings for rotation in PDF document using PdfPageRotateAngle.
Code Snippet:
PdfDocument doc = new PdfDocument();
if (doc.PageSettings.Rotate == PdfPageRotateAngle.RotateAngle0)
doc.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle90;
else if (doc.PageSettings.Rotate == PdfPageRotateAngle.RotateAngle90)
doc.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle180;
else if (doc.PageSettings.Rotate == PdfPageRotateAngle.RotateAngle180)
doc.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle270;
else if (doc.PageSettings.Rotate == PdfPageRotateAngle.RotateAngle270)
doc.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle0;
rotation = doc.PageSettings.Rotate;
MemoryStream ms = new MemoryStream();
doc.Save(ms);
byte[] buffer = new byte[ms.Length];
ms.Read(buffer, 0, buffer.Length);
PdfLoadedDocument ldocument = new PdfLoadedDocument(ms);
pdfViewer.LoadDocument(ldocument);
ldocument.Close(true);
ms.Dispose();
doc.Close(true);
Please find the sample attached in the below link:
http://www.syncfusion.com/downloads/support/forum/119414/ze/RotationWinRT-574447116