How to use C# to conduct PDF path clipping with the exclude option?
rere .N PT CrThe Syncfusion Essential® PDF is a feature rich and high-performance .NET 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.
you can perform PDF path clipping with exclude option in the PDF document in the ASP.NET Core platform using c#.
Steps to perform PDF path clipping with exclude option using C#
- Create a new ASP.NET Core MVC application.
- Install the Syncfusion.Pdf.Net.Core NuGet packages as a reference to your .NET Core project from NuGet.org.
- Add a new button (Create Document) in the Index.cshtml as shown in the following image:
cshtml:
@{Html.BeginForm("GeneratePDF", "Home", FormMethod.Get);
{
<div>
<input type="submit" value="Create Document" style="width:150px;height:27px;margin-top: 50px;" />
</div>
}
Html.EndForm();
}
- Include the following namespaces in the HomeController.cs file.
using Syncfusion.Drawing; using Syncfusion.Pdf; using Syncfusion.Pdf.Graphics; using System.IO;
- Add a new action method GeneratePDF in the HomeController.cs and include the following code sample to perform exclude clipping in a PDF file and download it.
// Create a PDF Document. PdfDocument doc = new PdfDocument(); //Add pages to the document PdfPage page = doc.Pages.Add(); //Create PDF graphics for the page PdfGraphics graphics = page.Graphics; //Create PDF font. PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 12, PdfFontStyle.Regular); //Create PDF path. PdfPath path = new PdfPath(); //Add outer clipping region. path.AddRectangle(new RectangleF(0, 0, page.GetClientSize().Width, page.GetClientSize().Height)); //Add inner clipping region. path.AddEllipse(new RectangleF(10, 10, 150, 70)); //Clip path in the graphics graphics.SetClip(path, PdfFillMode.Alternate); string text = "Essential PDF is a feature rich .NET PDF class library developed with 100% managed C# code that can be used to create, read and write PDF. The library can be used in Windows Forms, WPF, ASP.NET Web Forms, ASP.NET MVC, ASP.NET Core, Blazor, UWP, Xamarin, Flutter applications and Unity platform without the dependency of Adobe Acrobat. The creation of PDF follows the most popular PDF 1.7 (ISO 32000-1) and latest PDF 2.0 (ISO 32000-2) specifications."; //Draw text on the page graphics. graphics.DrawString(text, font, PdfBrushes.Black, new RectangleF(0, 0, page.GetClientSize().Width, page.GetClientSize().Height)); //Save the PDF document. MemoryStream stream = new MemoryStream(); //Save the PDF document. doc.Save(stream); stream.Position = 0; //Close the document. doc.Close(true); //Download the PDF document in the browser. FileStreamResult fileStreamResult = new FileStreamResult(stream, "application/pdf"); fileStreamResult.FileDownloadName = "ExcludeClipping.pdf"; return fileStreamResult;
- Build and run the application, the website will open in the browser, then, you can achieve the exclude clipping behavior from the PDF document.
- By executing the program, you will get the PDF document as follows:
A complete work sample can be downloaded from ExcludeClipping.zip
Take a moment to peruse the documentation. You can find the other options like add text, various formats of images, tables and shapes. Also, add, modify and remove interactive elements such as bookmarks, annotations and attachments and features like encrypt and decrypt PDF document and digitally sign a PDF file with code examples.
Refer to this link to explore a rich set of Syncfusion Essential® PDF features.
Starting with v16.2.0.x, if you reference Syncfusion® assemblies from the trial setup or the NuGet feed, include a license key in your projects. Refer to the link to learn about generating and registering the Syncfusion® license key in your application to use the components without trail message.
