How to preserve symbols and signs in HTML when converting to PDF using C#?

The Syncfusion® HTML to PDF converter is a .NET library for converting webpages, SVG, MHTML, and HTML to PDF using C#. It is reliable and accurate. The result preserves all graphics, images, texts, fonts, and the layout of the original HTML document or webpage.

Using this library, you can preserve symbols and signs in HTML when converting to PDF using C#.

Steps to preserve symbols and signs in HTML when converting to PDF programmatically:

1. Create a new C# Windows Forms application project.
2. Install the Syncfusion.HtmlToPdfConverter.WinForms NuGet package as reference to your .NET Framework application from NuGet.org.

3. To preserve the symbols, Unicode characters, and signs in HTML to PDF conversion, the input HTML should contain the charset so that the converter will preserve the characters in the HTML to PDF conversion. Please refer to the screenshot below to set the charset in the input HTML. The charset can differ based on the characters used in the input HTML file.  
4. Include the following namespaces in the Form1.Designer.cs file.

C#

using Syncfusion.HtmlConverter;
using Syncfusion.Pdf;
using System.IO;

5. Use the following code snippet to preserve symbols and signs in HTML when converting to PDF.

C#

string url = Path.GetFullPath("../../Data/input.html");
 
// Initialize HTML to PDF converter
HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter();
 
// Convert HTML to PDF
PdfDocument document = htmlConverter.Convert(url);
 
// Save and close the PDF document
document.Save("Sample.pdf");
document.Close(true);
 
// This will open the PDF file so, the result will be seen in default PDF viewer  
Process.Start("Sample.pdf");

A complete working sample can be downloaded from HTMLtoPDF_Sample.zip.

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

Take a moment to peruse the documentation, where you can find converting HTML pages to PDF document along with respective customization options and features.

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

An online sample link for Converting HTML to PDF.