Edit PDF in C# using REST API

Our .NET library gives developers the ability to modify a PDF document directly by editing its Document Object Model (DOM), which means no additional software needs to be installed.

Edit text in PDF file using C#

The most popular case to edit a PDF file is text editing. With the given software solution, you can add, modify or delete text using C# within the document.

Edit table in PDF file using C#

Another popular PDF editing option is table editing. Our .NET SDK allows you to work with tables and text in table cells.

C# developers can add or remove table and table cells, as well as add, edit and remove text within them.

Add an image to PDF file using C#

Besides editing text and tables in PDF, there is another common option: adding images to a document in C#. .NET developers can also add an image into a PDF file using DOM.

Edit PDF programmatically

Try this powerful .NET SDK and evaluate some options in PDF document editing. Using the following example, load your PDF document and make some changes: add text, add a table and a table cell with text or insert an image into the PDF document:

Edit text, tables or images in PDF using C#

Input files

Upload a document you want to modify

Run code

Upload an image you want insert

Output format

Select the target format from the list

				
				
				
		

					using Aspose.Words.Cloud.Sdk;

var config = new Configuration { ClientId = "####-####-####-####-####", 
   ClientSecret = "##################" };
var wordsApi = new WordsApi(config);

using var requestDocument = File.OpenRead("Input.pdf");
var requestParagraph = new ParagraphInsert()
{
    Text = "Morbi enim nunc faucibus a."
};
var insertParagraphRequest = new InsertParagraphOnlineRequest(requestDocument, 
   requestParagraph);
var insertParagraph = await wordsApi.InsertParagraphOnline(insertParagraphRequest);

var convertRequest = new ConvertDocumentRequest(insertParagraph.Document.Values.First(),
  "pdf");
var convert = await wordsApi.ConvertDocument(convertRequest);

				

					using Aspose.Words.Cloud.Sdk;

var config = new Configuration { ClientId = "####-####-####-####-####", 
   ClientSecret = "##################" };
var wordsApi = new WordsApi(config);

using var requestDocument = File.OpenRead("Input.pdf");
var requestTable = new TableInsert()
{
    ColumnsCount = 1,
    RowsCount = 2
};
var insertTableRequest = new InsertTableOnlineRequest(requestDocument, 
   requestTable, nodePath: "");
var insertTable = await wordsApi.InsertTableOnline(insertTableRequest);

var convertRequest = new ConvertDocumentRequest(insertTable.Document.Values.First(),
  "pdf");
var convert = await wordsApi.ConvertDocument(convertRequest);
				

					using Aspose.Words.Cloud.Sdk;

var config = new Configuration { ClientId = "####-####-####-####-####", 
   ClientSecret = "##################" };
var wordsApi = new WordsApi(config);

using var requestDocument = File.OpenRead("Input1.pdf");
var requestDrawingObject = new DrawingObjectInsert()
{
    Height = 0f,
    Left = 0f,
    Top = 0f,
    Width = 0f,
    RelativeHorizontalPosition = DrawingObjectInsert.RelativeHorizontalPositionEnum.Margin,
    RelativeVerticalPosition = DrawingObjectInsert.RelativeVerticalPositionEnum.Margin,
    WrapType = DrawingObjectInsert.WrapTypeEnum.Inline
};
using var requestImageFile = File.OpenRead("Input2.pdf");
var insertDrawingObjectRequest = new InsertDrawingObjectOnlineRequest(requestDocument, 
   requestDrawingObject, requestImageFile, nodePath: "sections/0");
var insertDrawingObject = await wordsApi.InsertDrawingObjectOnline(insertDrawingObjectRequest);

var convertRequest = new ConvertDocumentRequest(insertDrawingObject.Document.Values.First(),
  "pdf");
var convert = await wordsApi.ConvertDocument(convertRequest);

				

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How to edit PDF C# REST API

Install Aspose.Words Cloud for .NET
Add a library reference (import the library) to your C# project
Load PDF to edit in C#
Insert content at the beginning of PDF
Download the result document from the cloud storage

C# library to use PDF editing

Install 'Aspose.Words Cloud SDK for .NET' using NuGet package manager. Just run nuget install Aspose.Words-Cloud to automatically install and reference the corresponding assembly in your project. As an alternative, you can manually clone Aspose.Words Cloud SDK for .NET source code from GitHub and use it in your project. Please follow these Instructions to quickly get the necessary security credentials and access our REST API.