We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How to draw rounded corner rectangle on PDF document in ASP.NET Core

Platform: ASP.NET Core |
Control: PDF

The Syncfusion Essential PDF is a feature-rich and high performance .NET Core PDF library used to create, read, and edit PDF documents programmatically without Adobe dependencies. This library also offers functionality to merge, split, stamp, forms, compress, and secure PDF files.

Using this library, you can draw different shapes like line, curve, rectangle and more on PDF documents in C# and VB.NET. This sample explains how to draw a round corner rectangle on PDF document in ASP.NET Core application.

Steps to draw a round corner rectangle on PDF document in ASP.NET Core application:

  1. Create a new ASP.NET Core Web application project. Create ASP.NET Core application in Visual Studio
  2. Select Web Application (Model-View-Controller) pattern for the project. Select MVC
  3. Install the Syncfusion.Pdf.Net.Core NuGet package as a reference to your .NET standard applications from the NuGet.org. Refer NuGet package to the project
  4. A default controller named HomeController.cs gets added on creation of the project.
  5. A default action method named Index will be present in HomeController.cs. Right-click on the Index method and select Go to View where you will be directed to its view page Index.cshtml.
  6. Add a new button in Index.cshtml as shown below.

CSHTML

@{Html.BeginForm("CreatePDF", "Home", FormMethod.Get);
    {
        <div>
            <input type="submit" value="Create PDF" style="width:150px;height:27px" />
        </div>
    }
    Html.EndForm();
}

 

  1. Include the following namespaces in HomeController.cs file.

C#

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

 

VB.NET

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

 

  1. You can draw a round corner rectangle on PDF document in .NET Standard application by using the PdfPath class.
  2. Add a new IActionResult with name as CreatePDF and include the following code snippet to draw a round corner rectangle on PDF document.

C#

//Create a new PDF document
PdfDocument document = new PdfDocument();
 
//Add a new page to the document
PdfPage page = document.Pages.Add();
 
//Initialize graphics for the page
PdfGraphics graphics = page.Graphics;
 
//Represent the shape
graphics.DrawString("Rounded Rectangle", new PdfStandardFont(PdfFontFamily.Helvetica, 16), PdfBrushes.DarkBlue, new PointF(190,30));
            
//Create the rectangle
RectangleF rect = new RectangleF(160, 70, 200, 100);
int dimension = 30;
 
//Create the PdfPath
PdfPath pdfPath = new PdfPath();
 
//Draw the rounded rectangle as separate 4 arcs with same dimensions of width and height
pdfPath.AddArc(rect.X, rect.Y, dimension, dimension, 180, 90);
pdfPath.AddArc(rect.X + rect.Width - dimension, rect.Y, dimension, dimension, 270, 90);
pdfPath.AddArc(rect.X + rect.Width - dimension, rect.Y + rect.Height - dimension, dimension, dimension, 0, 90);
pdfPath.AddArc(rect.X, rect.Y + rect.Height - dimension, dimension, dimension, 90, 90);
 
//Close the path
pdfPath.CloseFigure();
 
//Draw the PDF path
graphics.DrawPath(PdfPens.Black, pdfPath);
 
//Saving the PDF to the MemoryStream
MemoryStream stream = new MemoryStream();
document.Save(stream);
 
//Set the position as '0'
stream.Position = 0;
 
//Download the PDF document in the browser
FileStreamResult fileStreamResult = new FileStreamResult(stream, "application/pdf");
fileStreamResult.FileDownloadName = "RoundRectangle.pdf";
return fileStreamResult;

 

VB.NET

'Create a new PDF document
Dim document As PdfDocument = New PdfDocument
 
'Add a new page to the document
Dim page As PdfPage = document.Pages.Add
 
'Initialize graphics for the page
Dim graphics As PdfGraphics = page.Graphics
 
'Represent the shape
graphics.DrawString("Rounded Rectangle", New PdfStandardFont(PdfFontFamily.Helvetica, 16), PdfBrushes.DarkBlue, New PointF(190, 30))
 
'Create the rectangle
Dim rect As RectangleF = New RectangleF(160, 70, 200, 100)
Dim dimension As Integer = 30
 
'Create the PdfPath
Dim pdfPath As PdfPath = New PdfPath
 
'Draw the rounded rectangle as separate 4 arcs with same dimensions of width and height
pdfPath.AddArc(rect.X, rect.Y, dimension, dimension, 180, 90)
pdfPath.AddArc(rect.X + rect.Width - dimension, rect.Y, dimension, dimension, 270, 90)
pdfPath.AddArc(rect.X + rect.Width - dimension, rect.Y + rect.Height - dimension, dimension, dimension, 0, 90)
pdfPath.AddArc(rect.X, rect.Y + rect.Height - dimension, dimension, dimension, 90, 90)
 
'Close the path
pdfPath.CloseFigure()
 
'Draw the PDF path
graphics.DrawPath(PdfPens.Black, pdfPath)
 
'Saving the PDF to the MemoryStream
Dim stream As MemoryStream = New MemoryStream
document.Save(stream)
 
'Set the position as '0'
stream.Position = 0
 
'Download the PDF document in the browser
Dim fileStreamResult As FileStreamResult = New FileStreamResult(stream, "application/pdf")
fileStreamResult.FileDownloadName = "RoundRectangle.pdf"
Return fileStreamResult

 

A complete work sample can be downloaded from RoundedRectangle.zip.

By executing the program, you will get the PDF document as follows.

Round corner rectangle

Take a moment to peruse the documentation, where you will find other options likes adding shapes to PDF document and shape pagination.

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

An online sample link for drawing different shapes on PDF document.

See Also:

Draw a round corner rectangle in Windows Forms

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.

 

2X faster development

The ultimate ASP.NET Core UI toolkit to boost your development speed.
ADD COMMENT
You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile