The Syncfusion PDF Library provides support to rotating a PDF document. The library also provides APIs for changing the orientation of a PDF document by a specified degree.
This article will cover the process to rotate a page, text, image and table from a PDF document using the Syncfusion .NET PDF library. The topics related to this will be discussed in the following sections of this post:
| Name | Description |
|---|---|
| Rotating a page in PDF | It means changing the orientation of the page by a specified degree. |
| Rotating a text in PDF | It means changing the orientation of the text by a specified degree. |
| Rotating an image in PDF | It means changing the orientation of the image by a specified degree. |
| Rotating a Table in PDF | It means changing the orientation of the table by a specified degree. |
Rotating a PDF page means changing the orientation of the page by a specified degree.
The following code example shows how to rotate a page to a PDF file using C#.
//Load PDF document as stream.
FileStream inputStream = new FileStream("Input.pdf", FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
//Load the existing PDF document.
PdfLoadedDocument loadedDocument = new PdfLoadedDocument(inputStream);
for (int i = 0; i < loadedDocument.PageCount; i++)
{
//Gets the page.
PdfPageBase loadedPage = loadedDocument.Pages[i] as PdfPageBase;
//Set the rotation for loaded page.
loadedPage.Rotation = PdfPageRotateAngle.RotateAngle90;
}
//Create the filestream to save the PDF document.
using(FileStream fileStream = new FileStream("Output.pdf", FileMode.CreateNew, FileAccess.ReadWrite))
{
loadedDocument.Save(fileStream);
}
//Close the document.
loadedDocument.Close(true); By executing this code example, you will get a PDF document like the following screenshot.
Rotating a PDF text means changing the orientation of the text by a specified degree.
The following code example shows how to rotate a text to a PDF file using C#.
//Create a new PDF document.
PdfDocument pdfDocument = new PdfDocument();
//Add a page to the PDF document.
PdfPage pdfPage = pdfDocument.Pages.Add();
//Create PDF graphics for the page.
PdfGraphics graphics = pdfPage.Graphics;
//Set the font.
PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 20);
//Add watermark text.
PdfGraphicsState state = graphics.Save();
graphics.RotateTransform(-40);
graphics.DrawString("Rotating a text in PDF document", font, PdfPens.Red, PdfBrushes.Red, new PointF(-150, 450));
//Create the filestream to save the PDF document.
FileStream fileStream = new FileStream("Output.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
pdfDocument.Save(fileStream);
//Close the document.
pdfDocument.Close(true);By executing this code example, you will get a PDF document like the following screenshot.
Rotating a PDF image means changing the orientation of the image by a specified degree.
The following code example shows how to rotate an image to a PDF file using C#.
//Created the PDF document.
PdfDocument document = new PdfDocument();
//Add a new page
PdfPage page = document.Pages.Add();
FileStream imageStream = new FileStream("Input.png", FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
//Load a bitmap
PdfBitmap image = new PdfBitmap(imageStream);
//save the current graphics state
PdfGraphicsState state = page.Graphics.Save();
//Rotate the coordinate system
page.Graphics.RotateTransform(-40);
//Draw image
image.Draw(page, -150, 450);
//Restore the graphics state
page.Graphics.Restore(state);
//Create the filestream to save the PDF document.
FileStream fileStream = new FileStream("Output.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
document.Save(fileStream);
//Close the document.
document.Close(true); By executing this code example, you will get a PDF document like the following screenshot.
Rotating a PDF table means changing the orientation of the table by a specified degree.
The following code example shows how to rotate an table to a PDF file using C#.
//Create a new PDF document.
PdfDocument document = new PdfDocument();
//Add a page.
PdfPage page = document.Pages.Add();
//Create a PdfGrid.
PdfGrid pdfGrid = new PdfGrid();
//Add a handler to rotate the table.
pdfGrid.BeginPageLayout += PdfGrid_BeginPageLayout;
//Create a DataTable.
DataTable dataTable = new DataTable();
//Add columns to the DataTable.
dataTable.Columns.Add("ID", typeof(int));
dataTable.Columns.Add("Name", typeof(string));
dataTable.Columns.Add("Type", typeof(string));
dataTable.Columns.Add("Date", typeof(DateTime));
//Add rows to the DataTable.
for (int i = 0; i < 10; i++)
{
dataTable.Rows.Add(57, "AAA", "ABC", DateTime.Now);
dataTable.Rows.Add(130, "BBB", "BCD", DateTime.Now);
dataTable.Rows.Add(92, "CCC", "CDE", DateTime.Now);
}
//Assign data source.
pdfGrid.DataSource = dataTable;
//Set a repeat header for the table.
pdfGrid.RepeatHeader = true;
//Draw a grid to the page of a PDF document.
pdfGrid.Draw(page, new RectangleF(100, 20, 0, page.GetClientSize().Width));
//Create the filestream to save the PDF document.
FileStream fileStream = new FileStream("Output.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
document.Save(fileStream);
//Close the document.
document.Close(true);
void PdfGrid_BeginPageLayout(object sender, Syncfusion.Pdf.Graphics.BeginPageLayoutEventArgs e)
{
PdfPage page = e.Page;
PdfGraphics graphics = e.Page.Graphics;
//Translate the coordinate system to the required position.
graphics.TranslateTransform(page.GetClientSize().Width, 0);
//Rotate the coordinate system.
graphics.RotateTransform(90);
} By executing this code example, you will get a PDF document like the following screenshot.
- Download this project to a location in your disk.
- Open the solution file using Visual Studio.
- Rebuild the solution to install the required NuGet package.
- Run the application.
- Product page: Syncfusion PDF Framework
- Documentation page: Syncfusion .NET PDF library
- Online demo: Syncfusion .NET PDF library - Online demos
- Blog: Syncfusion .NET PDF library - Blog
- Knowledge Base: Syncfusion .NET PDF library - Knowledge Base
- EBooks: Syncfusion .NET PDF library - EBooks
- FAQ: Syncfusion .NET PDF library - FAQ
- For any other queries, reach our Syncfusion support team or post the queries through the community forums.
- Request new feature through Syncfusion feedback portal.
This is a commercial product and requires a paid license for possession or use. Syncfusion’s licensed software, including this component, is subject to the terms and conditions of Syncfusion's EULA. You can purchase a licnense here or start a free 30-day trial here.
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