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How to rotate pages in a PDF file

Platform: WinForms |
Control: PDF |
Published Date: August 14, 2018 |
Last Revised Date: May 3, 2019

Syncfusion Essential PDF is a .NET PDF library used to create, read, and edit PDF documents. Using this library, you can rotate the pages in a PDF file.

Steps to rotate the pages in PDF file programmatically:

  1. Create a new C# console application project. Create new empty console application in visual studio
  2. Install the Syncfusion.Pdf.WinForms  NuGet package as reference to the .NET framework application from the NuGet.org. Install nuget packages
  3. Include the following namespaces in the program.cs file.

C#

using Syncfusion.Pdf;
using Syncfusion.Pdf.Graphics;
using System.Drawing;

 

VB.NET

Imports Syncfusion.Pdf
Imports Syncfusion.Pdf.Graphics
Imports System.Drawing

 

  1. Use the following C# and VB.NET code snippet to rotate the pages in a PDF file.

C#

//Create an instance of PdfDocument
using (PdfDocument document = new PdfDocument())
{
 //Add a section
 PdfSection section = document.Sections.Add();
 
 //Rotate a section or page
 section.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle90;
 
//Add a page
 PdfPage page = section.Pages.Add();
 
 //Create PDF graphics for a page
 PdfGraphics graphics = page.Graphics;
 
 //Create a solid brush
 PdfBrush brush = new PdfSolidBrush(Color.Black);
 
 //Set the font
 PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 14);
 
 //Draws the text
 graphics.DrawString("Rotated by 90 degree", font, brush, new PointF(20, 20));
                
 //Save and close the document
 document.Save("Output.pdf");
}

 

VB.NET

'Create an instance of PdfDocument
Using document As PdfDocument = New PdfDocument()
   'Add a section
   Dim section As PdfSection = document.Sections.Add()
 
   'Rotate a section or page
   section.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle90
 
    'Add a page
    Dim page As PdfPage = section.Pages.Add()
 
    'Create PDF graphics for the page
    Dim graphics As PdfGraphics = page.Graphics
 
    'Create a solid brush
    Dim brush As PdfBrush = New PdfSolidBrush(Color.Black)
 
    'Set the font
    Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Helvetica, 14)
 
    'Draws the text
    graphics.DrawString("Rotated by 90 degree", font, brush, New PointF(20, 20))
 
    'Save and close the document
    document.Save("Output.pdf")
End Using

 

A complete working sample can be downloaded from Rotate-pages-in-a-PDF-file.zip

By executing the program, you will get the PDF document as follows. Rotate pages in a PDF file

Take a moment to peruse the documentation, where you can find other options like drawing right-to-left text and multi-column text,  consuming TrueType fonts, Standard fonts, CJK fonts. Also, the features like PDF form filling, extract text or images from PDF, and protect PDF documents with code examples.

Refer here to explore the rich set of Syncfusion Essential PDF features.

Note:

Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.

 

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