Electronic Signature
Developers
Features
API for eSignature Solutions
Merge several documents into one for signing with C# Client for API

Merge several documents into one for signing with C# Client using the API

Combine several existing documents into one and send it for eSigning within your application. Users can merge documents in a specific order and rename newly merged documents in a single click.

Free to test
Fast to deploy
Powerful & secure

Merge documents together

Use the sample code to create new documents by combining a few existing ones and arranging pages within one document.

Node.js

C#

Python

cURL

Copy code

public partial class RestSharpSamples
    {
        public static string MergeDocuments(string accessToken, string apiUrl, string newDocumentName, IEnumerable<string> documentsIds)
        {
            var client = new RestClient { BaseUrl = new Uri(apiUrl) };
 
            var request = new RestRequest($"/document/merge", Method.POST)
                .AddHeader("Accept", "application/json")
                .AddHeader("Authorization", $"Bearer {accessToken}");
 
            request.RequestFormat = DataFormat.Json;
 
            request.AddBody(new MergeDocumentRequestModel()
            {
                name = newDocumentName,
                document_ids = documentsIds
            });
 
            var response = client.Execute(request);
 
            if (response.StatusCode != HttpStatusCode.OK)
            {
                throw new Exception(response.Content);
            }
 
            var mergedFileContent =  Encoding.UTF8.GetBytes( response.Content );
            return Convert.ToBase64String(mergedFileContent);
        }
    }

We provide developers with complete SDKs for all popular languages, allowing them to integrate eSignature workflows without writing a single line of code.
With our detailed documentation, integrating the signNow API is a breeze.
The signNow API not only provides you with eSignatures: use it to create fillable forms, request payments, and download & archive documents using simple API calls.

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Solution engineers

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Review signNow’s API documentation

The detailed API tutorial will guide you through the entire integration process and provide clear coding examples.

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21 CFR Part 11

FDA-backed standards for electronic documentation and electronic signatures.

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Protects the private health information of your patients.

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Enhances the protection of personal data and the privacy of California residents.

Watch the signNow API in action

Get started with uninterrupted eSignature API: merge several documents into one for signing with C# Client using the API

Consolidate and streamline your eSignature workflows and establish seamless processes. Try the signNow API, implement eSignature workflows into your custom apps and websites in minutes, and seamlessly merge several documents into one for signing with C# Client using the API.

Merge several documents into one for signing with C# Client using the API the signNow API for uninterrupted eSignature API

Click API on the signNow main page and create your API Sandbox account.
Open your email to confirm the registration and specify a password for accessing your Developer Sandbox environment.
Find the list of your apps at the top of the page. By default, you can also find a Test App for testing the API.
Click its name to access the Client ID and Basic Authorization Token.
Launch the API using the information from the previous step.
Use the code samples from the signNow library.
When you're ready to go live, go to your signNow account and choose a subscription plan.
If you can't find a subscription that suits your needs, contact the Sales team.
Change the test URL in your requests to the production environment URL.
Delight your customers and partners with a streamlined eSignature experience.

The signNow API is straightforward to embed, test, and work with (no sales people engaged). Get the ability to merge several documents into one for signing with C# Client using the API conveniently. Select signNow to get more effective eSignature workflows.

How it works

Create an account and get the required tokens

Use code samples to merge several documents into one for signing with C# Client using the API

Enjoy the power of eSignature in your workflows

Watch our instructions to build custom integrations with ease

signNow offers a free testing environment to explore the eSignature.

Trusted eSignature solution — what our customers are saying

Explore how the signNow eSignature platform helps businesses succeed. Hear from real users and what they like most about electronic signing.

This service is really great! It has helped...

5

anonymous

This service is really great! It has helped us enormously by ensuring we are fully covered in our agreements. We are on a 100% for collecting on our jobs, from a previous 60-70%. I recommend this to everyone.

Read full review

I've been using SignNow for years (since it...

5

Susan S

I've been using SignNow for years (since it was CudaSign). I started using SignNow for real estate as it was easier for my clients to use. I now use it in my business for employement and onboarding docs.

Read full review

Everything has been great, really easy to incorporate...

5

Liam R

Everything has been great, really easy to incorporate into my business. And the clients who have used your software so far have said it is very easy to complete the necessary signatures.

Read full review