Document e-Signing Solution
Sign digital documents and images on any platform using our flexible APIs and app-based solutions for programmers and end-users.
Search and modify previously added signatures using advanced methods.
Protect documents from changes with digital certificates and control hidden metadata.
GroupDocs.Signature key features
Our solution is designed to add various types of signatures to popular document and file formats. Enrich your business processes easily.
Enrich your data with signatures
Append text, images, watermarks, etc. to your business documents.
Protect documents content
Forbid document changes by sealing it with a digital certificate.
Add hidden data and barcodes
Use metadata to store invisible information or put custom barcodes on pages.
Manipulate signatures
Search, update, or delete all signatures that have been added previously.
Protect your files using signatures
GroupDocs.Signature code examples
Generate and add QR-code
// Specify the document for signing
using (Signature signature = new Signature("source.docx"))
{
// Create QR-code sign options
QrCodeSignOptions options = new QrCodeSignOptions("JohnSmith")
{
// Set QR-code options
EncodeType = QrCodeTypes.QR,
Left = 50,
Top = 150,
};
// Sign and save processed file
SignResult result = signature.Sign("result.docx", options);
}
// Specify the document for signing
Signature signature = new Signature("source.docx");
// Create QR-code sign options
QrCodeSignOptions options = new QrCodeSignOptions("JohnSmith");
// Set QR-code options
options.setEncodeType(QrCodeTypes.QR);
options.setLeft(50);
options.setTop(100);
// Sign and save processed file
signature.sign("result.docx", options);
const signatureLib = require('@groupdocs/groupdocs.signature')
// Specify the document for signing
const signature = new signatureLib.Signature('source.docx');
// Create QR-code sign options
const options = new signatureLib.QrCodeSignOptions('JohnSmith');
// Set QR-code options
options.setEncodeType(signatureLib.QrCodeTypes.QR);
options.setLeft(50);
options.setTop(100);
// Sign and save processed file
signature.sign('result.docx', options);
import groupdocs.signature as sg
def run():
# Specify the document for signing
with sg.Signature('source.docx') as signature:
# Create QR-code sign options
options = sg.QrCodeSignOptions('JohnSmith')
# Set QR-code options
options.setEncodeType(sg.QrCodeTypes.QR)
options.setLeft(50)
options.setTop(100)
# Sign and save processed file
signature.sign('result.docx', options)
60+ file formats are supported
GroupDocs.Signature supports almost all popular file formats
Our library statistical data
Inspect key product metrics, revealing insights into our achievements, impact, and growth
- 50+
Supported formats
Signing more than 60 of the most popular business file formats.
- 500k
NuGet downloads
GroupDocs.Signature for .NET is a popular library with over 550,000 downloads on NuGet.
- 15k
Maven downloads
Java developers have downloaded GroupDocs.Signature on Maven more than 15K times.
- 140+
Happy customers
Individual developers and top companies worldwide use our products to build innovative solutions.
Our happy customers
GroupDocs libraries are employed by globally renowned and distinguished brands across the world
Platform independence
GroupDocs.Signature library supports the following operating systems and frameworks:
.NET
.NET Core 3.0 or higher
.NET 6.0 or higher
Linux
Mac OS
Microsoft Azure
JetBrains Rider
Microsoft Visual Code
Java
Linux
Mac OS
Eclipse
NetBeans
Node.js
Linux
Mac OS
Visual Studio Code
Any other text editor
Python
Linux
Mac OS
PyCharm
Visual Studio Code
Useful resources
Explore documentation, code samples, and community support to enhance your experience.
Frequently asked questions
Explore our Frequently Asked Questions
- Does GroupDocs.Signature need any external library for documents signing?No, GroupDocs.Signature works independently. There are no third-party dependencies like Adobe Acrobat, Microsoft Office, etc.
- Is it possible to test GroupDocs.Signature features before buying?Absolutely! GroupDocs.Signature offers a free trial. Install it and explore its features. Note that trial versions add ’trial badges’ to your documents and only process the first 3 pages. For the full experience, obtain a free 30-day temporary license to access all functionalities. See details under temporary license.
- What license types are provided?Looking for a GroupDocs.Signature license? We offer various options tailored to your needs. Choose based on team size, deployment locations (single office or remote workplaces), and whether end-customer distribution requires sharing the SDK/API with clients. Alternatively, opt for a monthly usage license with metered plans—pay only for what you use. Discover the best fit for you under pricing.
GroupDocs.Signature low code APIs
Sign files using your application via our cloud-based REST API.
GroupDocs.Signature Cloud for cURL
Use cURL RESTful API to put signatures on PDF, Word, Excel, PowerPoint, JPEG, and many other file formats.
GroupDocs.Signature Cloud for .NET
Enrich your .NET applications with signing documents via Cloud SDK. Protect business documents in your own way.
GroupDocs.Signature Cloud for Java
GroupDocs.Signature SDK grants access to various possibilities for your Java applications to sign any files.
GroupDocs.Signature Web apps
GroupDocs.Signature presents a free web application where you can sign documents. More than 60 popular file formats could be signed via your favorite browser FOR FREE.
