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Document Conversion SDK for .NET C#

Discover ConvertAPI's C# .NET SDK for seamless document conversion and management. Integrate powerful tools to convert, merge, compress, and redact PDFs and other file formats effortlessly in your .NET applications.

NuGet GitHub

Integrate within minutes

It is easy to start converting documents using C# in a few simple steps:

1

Sign up for a free account

Sign up for free and receive 250 conversions to try and evaluate our service. You will receive a free trial with no credit card required upon registration!

2

Set up the conversion online

On your account dashboard you will access an intuitive UI tool that allows you to set up the conversion, adjust the parameters, and try the conversion online with zero code.

3

Copy auto-generated code snippet

Once you have set up the conversion parameters and are happy with the conversion results, you will receive an auto-generated C# code snippet with your custom parameters!

Get started now

Document management toolkit for C#

The ConvertAPI C# Client offers a simple and efficient way to integrate powerful file conversion capabilities into your .NET Framework, .NET Core, and .NET projects. With support for a wide range of formats, it allows you to seamlessly convert documents, images, spreadsheets, and more. Additionally, the library provides advanced PDF manipulations such as redacting, merging, encrypting, splitting, repairing, and decrypting files.

File Converter Suite

High-performance and unbeatable accuracy document converter suite with support for over 500+ conversion.

Document Builder using C#

Generate dynamic DOCX and PDF documents like invoices, contracts, reports, on the fly.

Document Management tools

Protect, redact, compare, watermark, flatten, compress and modify your documents using ConvertAPI .NET SDK.

Security and Decryption

Protect and unprotect PDFs, MS Office Powerpoint and MS Office Word documents.

AI Data Extractor

Built to scale with your business, whether you're handling a few conversions or thousands.

Archiving & Optimization

Reduce file sizes without losing quality. Archive converters are designed to handle over 100 different file formats.

Take a look at C# code samples

View on GitHub

Configure it online - we will generate the C# code for you!

Configure your file conversion directly online using our intuitive interface. Select the desired parameters and see the results in real-time. Once you're satisfied, we’ll automatically generate the C# code for you, making integration into your project effortless. No need to start from scratch—just copy the code and implement it seamlessly into your .NET application!

Get started now

File conversion example using C#

Converting documents using our .NET SDK has never been easier. Whether converting or manipulating documents, the ConvertAPI library simplifies the process with minimal code and maximum efficiency. First, you want to install the ConvertAPI NuGet library by run this line from Package Manager Console:

Install-Package ConvertApi

After installing the library and obtaining your authentication token, you can access all our converters and tools!

DOCX to PDF conversion example

In just a few lines of code, you can specify your source file and fine-tune the conversion by enabling or disabling various features such as markups, tags, metadata, headings, bookmarks, and table-of-contents updates. The library handles all the complexity under the hood, allowing you to focus on seamlessly integrating document conversion into your application’s workflow.

// Code snippet is using the ConvertAPI JavaScript Client: https://github.com/ConvertAPI/convertapi-library-js

// Code snippet is using the ConvertAPI Node.js Client: https://github.com/ConvertAPI/convertapi-nodejs

// Code snippet is using the ConvertAPI PHP Client: https://github.com/ConvertAPI/convertapi-php

// Code snippet is using the ConvertAPI Java Client: https://github.com/ConvertAPI/convertapi-java

// Code snippet is using the ConvertAPI C# Client: https://github.com/ConvertAPI/convertapi-dotnet

# Code snippet is using the ConvertAPI Ruby Client: https://github.com/ConvertAPI/convertapi-ruby

# Code snippet is using the ConvertAPI Python Client: https://github.com/ConvertAPI/convertapi-python

// Code snippet is using the ConvertAPI Go Client: https://github.com/ConvertAPI/convertapi-go

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

<!-- For conversions with the multiple file result please refer to this example: https://repl.it/@ConvertAPI/HTML-Form-with-multiple-file-result -->

Using our C# library, you can seamlessly access over 500+ converters and document management tools from a single, centralized interface.

Whether you prefer to convert documents by providing a URL, working directly with file streams, or simply supplying file paths from your local machine, our library offers flexible input options that adapt to your workflow. For even greater efficiency, take advantage of conversion workflows to streamline your operations.

To explore more advanced techniques and customization strategies, be sure to browse our GitHub examples folder.

Automate Your Document Management using C#

Take control of your documents with our C# document management SDK. From basic conversions to full workflow automation, we provide the expertise and tools you need to manage your documents efficiently.

Data security is our top priority

We ensure that all document processing is handled securely in the cloud, adhering to industry-leading standards like ISO 27001, GDPR, and HIPAA. To enhance security even further, we can ensure that no files or data are stored on our servers and never leave your country.

Learn more about security

Businesses trust us

Highest rated File Conversion API on major B2B software listing platforms: Capterra, G2, and Trustpilot.

"ConvertAPI has been a game-changer for our document automation workflows. Their conversion accuracy and API reliability are unmatched in the industry for over 7 years."

Oscar Brown Director of Development at Flocknote

"ConvertAPI is a reliable, cost-effective solution with a proven track record of stability. It has grown significantly in maturity, adopting enterprise-grade practices over the years."

Kenny Dickie Director of Engineering, Showbie

"We've integrated ConvertAPI across our entire document processing platform. The performance is exceptional and the support team is always responsive. Highly recommended!"

Dennis Mortensgaard CRM Engineer, DoWeb APS

Frequently asked questions

What is this library used for?

The ConvertAPI .NET C# SDK allows developers to integrate powerful file conversion, manipulation, and management features directly into their .NET applications. From converting PDFs to merging documents and extracting text, it supports hundreds of file formats and operations.

Can I convert large files using this SDK?

Yes. The SDK is designed to handle large documents efficiently. However, performance may vary depending on file size, complexity, and your server’s resources. You can also use asynchronous calls and workflows to optimize performance for large-scale conversions.

How do I install the ConvertAPI .NET C# SDK?

You can easily install the SDK via NuGet. Just run Install-Package ConvertApi in the Package Manager Console, or search for “ConvertApi” in the NuGet Package Manager GUI.

What file formats are supported by the ConvertAPI .NET C# SDK?

The SDK supports over 500+ file formats, including PDF, DOCX, XLSX, PPTX, JPG, PNG, HTML, and many others. This makes it ideal for a wide range of document conversion and processing tasks.

Is it possible to customize conversions using the ConvertAPI .NET C# SDK?

Absolutely. You can fine-tune various parameters—such as resolution, quality, page ranges, and metadata—depending on the file format and conversion type. The SDK’s flexible parameters let you tailor the output to your exact requirements.

Where can I find more detailed examples and documentation?

Visit our GitHub repository for code samples, advanced scenarios, and best practices. The repository is continually updated, ensuring you have the latest guidance for maximizing the SDK’s potential.

Try our C# library for free!