Electronic Signature
Developers
Features
API for eSignature Solutions
Upload a PDF for signing with fillable fields with C# SDK for API

Upload a PDF for signing with fillable fields with C# SDK using the API

airSlate SignNow’s API allows you to speed up the process of document management. Enable your clients to transform any scanned PDF document into a fillable one, upload it to your app or website and send it for signing.

Free to test
Fast to deploy
Powerful & secure

Allow users to upload fillable PDF documents

Use the sample code to enable users to upload PDF files with fillable fields to be completed, eSigned or sent for signature.

Node.js

C#

Java

Python

cURL

Copy code

public abstract class FieldRequestBase
    {
        public abstract string type { get; }
        public bool required { get; set; }
        public string template_field_id { get; set; }
        public string role { get; set; }
        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
        public string name { get; set; }
        public int page_number { get; set; }
        public int x { get; set; }
        public int y { get; set; }
        public int width { get; set; }
        public int height { get; set; }
    }
    public class DocumentUpdateRequestModel
    {
        public List<FieldRequestBase> fields { get; private set; } = new List<FieldRequestBase>();
    }
    public class SignatureFieldRequest : FieldRequestBase
    {
        public override string type { get { return "signature"; } }
    }
    class Program
    {
        static void Main(string[] args)
        {
            var accessToken = "Your ACCEES TOKEN";
            var apiBaseUrl = "airSlate SignNow API URL e.g.: https://api-eval.signnow.com";
            var documentId = "Your document ID";

if (response.StatusCode != HttpStatusCode.OK)
            {
                throw new Exception(response.Content);
            }
        }
    }

import signnow_python_sdk
from datetime import datetime

if __name__ == '__main__':
    signnow_python_sdk.Config(client_id="CLIENT_ID",
                              client_secret="CLIENT_SECRET",
                              environment="production")

# Enter your own credentials
    username = "USER_NAME"
    password = "USER_PASSWORD"
    template_id = "TEMPLATE_ID"

# Create access_token for the user
    access_token = signnow_python_sdk.OAuth2.request_token(username, password, '*')

# Create the PUT /document payload
    doc_payload = {
        "texts": [
            {
                "size": 22,
                "x": 61,
                "y": 72,
                "page_number": 0,
                "font": "Arial",
                "data": "a sample text element",
                "line_height": 9.075,
                "client_timestamp": datetime.now().strftime("%s")
            }
        ],
        "fields": [
            {
                "x": 61,
                "y": 100,
                "width": 120,
                "height": 34,
                "page_number": 0,
                "role": "Signer 1",
                "required": True,
                "type": "signature"
            },
            {
                "x": 61,
                "y": 160,
                "width": 120,
                "height": 12,
                "page_number": 0,
                "label": "New Label",
                "role": "Signer 1",
                "required": True,
                "type": "text"
            },
            {
                "x": 61,
                "y": 178,
                "width": 41,
                "height": 26,
                "page_number": 0,
                "role": "Signer 2",
                "required": True,
                "type": "initials"
            }
        ]
    }

# Update document template with payload
    put_doc_response = signnow_python_sdk.Template.update(access_token['access_token'], template_id, doc_payload)

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 airSlate SignNow API is a breeze.
The airSlate SignNow API not only provides you with eSignatures: use it to create fillable forms, request payments, and download & archive documents using simple API calls.

View full API reference

airSlate SignNow regularly wins awards for ease of use and setup

Read our reviews on the trusted resources

Tech Data uses airSlate SignNow to improve our internal and external customer service while increasing our speed to revenue.

Bob Dutkowsky | CEO

Select an API package for your business

Integrate eSignatures into your software and get 250 legally-binding signature invites with your API free trial.

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Solution engineers

We are here to help you configure eSignature API to your workflow.

Review airSlate SignNow’s API documentation

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

Video guides

Watch our video guides for instructions on how to easily build custom integrations.

Start with any of our SDKs

Get complete SDKs for Node.js, Python,
PHP, Java, C#.

Enterprise-grade security and compliance

airSlate SignNow is committed to protecting your sensitive information by complying with global industry-specific security standards.

Learn more

GDPR compliance

Regulates the use and holding of personal data belonging to EU residents.

SOC 2 Type II Certified

Guarantees the security of your data & the privacy of your clients.

PCI DSS certification

Safeguards credit/debit card data for every monetary transaction a customer makes.

21 CFR Part 11

FDA-backed standards for electronic documentation and electronic signatures.

HIPAA compliance

Protects the private health information of your patients.

CCPA compliance

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

Watch the airSlate SignNow API in action

Evaluate airSlate SignNow's upload a pdf with fillable fields with c sdk for api

The airSlate SignNow API equips enterprises with a distinctive set of functionalities that enhance overall business processes. Explore the benefits of our upload a pdf with fillable fields with c sdk for api by signing up for a complimentary Sandbox account.

Steps to establish a Sandbox account:

Navigate to the airSlate SignNow Developers portal. Here, you can find additional details about the API and initiate your Sandbox account registration.
Register for a trial. Provide your email address and click the Create API sandbox button to complete your registration.
Verify your email address. Access the email you receive and follow the link to confirm your email.
Access Developer Sandbox. Create a password to facilitate ongoing access to your developer account.
Add an application. Click Add App, assign a name to your app, and click Add to save your changes. The API token for the application will be generated automatically.
Evaluate upload a pdf with fillable fields with c sdk for api. Uncover all of airSlate SignNow's functionalities and how they can enhance your business operations.

Follow these guidelines to assess airSlate SignNow's features. If you have any inquiries, feel free to reach out to the support team. Optimize your business workflows with airSlate SignNow today.

How it works

Create an account and get the required tokens

Use code samples to upload a PDF for signing with fillable fields with C# SDK using the API

Enjoy the power of eSignature in your workflows

Watch our instructions to build custom integrations with ease

airSlate SignNow offers a free testing environment to explore the eSignature.

Trusted eSignature solution — what our customers are saying

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

Fantastic service

5

Jonathon

Always had great experiences and this has saved my neck many times in the past. It's also super easy for older, non-tech people.

This is an imperative service for me and has been a lifesaver on more than one occasion. It is very simple to use and I've been able to get very important documents signed by my bosses. I trust the level of safety as well and have no issue using it for sensitive/legal documents. I especially like how it can tab each area in a document to make it incredibly simple.

Read full review

airSlate SignNow works very well for us!

5

Eric Caron

What do you like best?

The interface and its seamless integration with Google Drive

Read full review

Great benefit with workers going remote

5

Administrator in Higher Education

What do you like best?

airSlate SignNow is easy to use. I can create a signable form from an existing paper form in a minute. Being able to template a form increases efficiency.

Read full review