Follow the link: HTML . Use a code sample in C#. Install HTML Editor for C#. Add a library reference (import the library) to your C# project. Open a HTML in C#. Insert content at the beginning of the HTML document. Call the Save() method, passing the name of the output file with the required extension. Get the edited result.

What file formats can I edit with C# library?

We support a variety of file formats that you can edit in C#, including DOCX, DOC, RTF, ODT, PDF, EPUB, JPG, PNG, XLS, XLSX, WPS and many more.

What is the maximum file size allowed to edit a HTML?

There are no size limits to edit HTML using our C# library.

Edit HTML In C#

Edit text in HTML using C#

Programmatic modification of HTML documents is an integral part of modern digital workflow. Edit text in HTML, insert graphs using external data, modify tables.

C# library is a stand-alone solution to edit HTML that doesn't rely on other software. It's ready for commercial use covers all possible needs of professional C# developers:

Modify existing HTML elements: tables, lists, charts, images, links, fields, etc.
Modify HTML styles and formatting attributes
Add new HTML elements
Search HTML for text patterns and replace them with new text
Save the result to a variety of file formats using 'Document.Save' method
Remove unwanted HTML elements (paragraphs, pages, sections, chapters)

Change HTML in C#

C# HTML programmatic editor provides developers with a modern API to edit HTML programmatically. Quickly integrate HTML modification features into your software. Our library supports the modification of a variety of document formats in C#.

The task of editing HTML programmatically in C# is the task of modifying elements in the HTML document tree. It is also known as the 'DOM' - the programming model for interacting with HTML document elements and their properties.

Edit HTML in C#

HTML modification features are inseparable from the advanced HTML search functionality. For a hig level of flexibility, our C# library provides developers with HTML Regex-based search functionality. This approach expands the possibilities to edit text in HTML files, allowing the use of templates for dynamic HTML transformation.

Edit table in HTML using C#

One of the most requested features is the dynamic creation and modification of tables in HTML documents. Working with tables is very convenient with C# library: edit tables, update tables and extract table text using C#.

The following example demostrates how to modify a HTML document in C#:

Example in C# to edit HTML files

Input file

Upload a document you want to modify

Run code

dotnet add package Aspose.Words

Copy

				
using Aspose.Words;

var doc = new Document("Input.html");
var builder = new DocumentBuilder(doc);

// Insert text at the beginning of the document.
builder.MoveToDocumentStart();
builder.Write("Morbi enim nunc faucibus a.");

doc.Save("Output.html");

using Aspose.Words;

var doc = new Document("Input.html");
var builder = new DocumentBuilder(doc);

// Insert table at the beginning of the document.
builder.MoveToDocumentStart();
builder.StartTable();
builder.InsertCell();
builder.Write("Row 1, cell 1.");
builder.InsertCell();
builder.Write("Row 1, cell 2.");
builder.EndTable();

doc.Save("Output.html");

using Aspose.Words;

var doc = new Document("Input.html");
var builder = new DocumentBuilder(doc);

// Insert image at the beginning of the document.
builder.MoveToDocumentStart();
builder.InsertImage("Image.png");

doc.Save("Output.html");

				Run code

You may freely download this code or copy it in any applicable purpose

How to edit HTML

Install HTML Editor for C#.
Add a library reference (import the library) to your C# project.
Open a HTML in C#.
Insert content at the beginning of the HTML document.
Call the Save() method, passing the name of the output file with the required extension.
Get the edited result.

C# library to work with HTML files

There are three alternative options to install "Aspose.Words for .NET" onto your system. Please choose one that resembles your needs and follow the step-by-step instructions:

Install a NuGet Package. See Documentation
Install the library using Package Manager Console within Visual Studio IDE
Install the library manually using Windows Installer

System Requirements

Our product is fully cross-platform and supports all major .NET implementations:

.NET ≥ 5.0
.NET Core ≥ 2.0
.NET Standard ≥ 2.0
.NET Framework ≥ 3.5
MonoMac
MonoAndroid
Xamarin

As far as .NET code doesn't depend on the underlying hardware or operating system, but only on a Virtual Machine, you are free to develop any kind of software for Windows, macOS, Android, iOS and Linux. Just make sure you have installed the corresponding version of .NET Framework, .NET Core, Windows Azure, Mono or Xamarin.

We recommend using Microsoft Visual Studio, Xamarin, and MonoDevelop integrated development environments to create C#, F#, VB.NET applications.

Fore more details please refer to Product Documentation.

You can edit files in many other file formats: