signing documents
Streamline approval workflows with secure electronic and digital signatures
Effortlessly integrate Nutrient’s customizable SDKs and APIs to power seamless, secure, and customizable signing experiences. With support for multiple digital signatures, long-term validation, and certificate-based authentication, our PDF eSignature library makes it easy to digitally sign documents across various operating systems, cloud services, and mobile devices.
Use cases
Integrate electronic signatures
Embed electronic signature functionality directly into applications, allowing users to sign documents digitally without needing external tools.
Validate document integrity
Use digital signatures to ensure the authenticity and integrity of PDF documents, providing users with a secure way to verify and validate signed files.
Automate signature collection
Streamline the process of collecting multiple signatures on a single document, enabling batch signing and reducing manual effort.
Support various signature standards
Implement support for different signature types and standards, including PAdES, to meet diverse compliance requirements.
Provide seamless signing experiences
Offer an intuitive, user-friendly signing interface that can be customized to fit within existing applications, ensuring a smooth signing process for end users.
what you get
Key features
Signature solutions for every platform — Bring seamless digital and electronic signatures to web, mobile, and server applications. From intuitive hand-drawn inputs to secure, certificate-backed signatures, our SDKs adapt to every need.
Complete control of signing workflows — Sign, verify, and manage documents effortlessly. With built-in tools for certificate validation and cryptographic security, every signature meets the highest standards of integrity and trust.
Customizable design, unified experience — Shape the signing process to match your app’s identity. Nutrient’s SDKs offer flexible UI customization, ensuring flawless integration across devices and platforms.
Client or server — you decide — Execute operations like signing and validation directly on the client or server, depending on your architecture. Enjoy ultimate flexibility without compromising speed or security.
Uncompromising security, total compliance — Safeguard sensitive data with advanced encryption and global eSignature compliance. From small teams to enterprise deployments, our SDKs scale to meet the most rigorous demands.
Smart automation for developers — Streamline workflows with event-based triggers, like notifying users after signing, or automating backend tasks. Our SDK integrates effortlessly with your tech stack for maximum efficiency.
Which one is right for you?
Electronic Signatures | Digital Signatures |
|---|---|
Use a fingertip, stylus, or mouse; upload an image of your signature; or type your signature in one of the provided styles | Secure, certificate-based identifiers with visual representations in PDF documents |
Confirm actions and purchases with a simple and familiar methodology for users | Best-available commercial standard for encrypted “digital fingerprint” confirmations |
Create and preserve a record of specific customer actions | Incorporate additional metadata: timestamp, IP address, signature speed, method of input, pressure sensitivity, and touch radius |
Scenarios:
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Relied upon by industry leaders
components
How we help
Electronic Signatures
Quickly capture approvals and sign documents easily with multiple signature types. Ideal for everyday use, this component provides a user-friendly, adaptable way to secure documents — without the need for complex authentication.
Quickly capture approvals and sign documents easily with multiple signature types. Ideal for everyday use, this component provides a user-friendly, adaptable way to secure documents — without the need for complex authentication.
Digital Signatures
Implement secure digital signatures to ensure authenticity, integrity, and legal compliance in your document workflows. Ideal for high-security needs and formal agreements.
Implement secure digital signatures to ensure authenticity, integrity, and legal compliance in your document workflows. Ideal for high-security needs and formal agreements.
Explore other use cases
Frequently asked questions
What’s the difference between electronic and digital signatures?
An electronic signature is a visual representation of a signature, similar to a handwritten signature on a printed document. It states who signed a document, acts as an acknowledgement, and could represent an agreement or contract.
Digital signatures, on the other hand, create a unique digital fingerprint of a document using cryptographic technology, providing enhanced security and verifying the integrity of the document’s contents. When using an electronic signature, one can acknowledge accepted terms to a contract by adding a visual signature.
When using a digital signature, one can be assured the document’s content has not been tampered with, as it verifies the digital signer’s identity.
What customization options are available in the electronic signatures SDK for signature UX/UI and workflows?
The electronic signature UI provides the ability to:
- Show tabs to draw a signature, type a signature, or upload a signature image
- Change the font of a typed signature
- Change the color of the text of a drawn signature
- Change the title of a signature dialog
- Show a narrow or wide version of the signature dialog
- Store signatures when signing multiple times
Can the electronic signatures SDK handle multiple signature types, such as drawn, image-based, and typed signatures?
The electronic signatures SDK has the ability to show tabs for a drawn signature, a typed signature, or uploading a signature image.
What are the system requirements for integrating the electronic signatures SDK into a web application?
Electronic signatures have the same requirements as our web viewer. Any modern browser and web server are all that’s required to integrate Nutrient into a web application. There’s no dependency on frameworks such as React, Next, or Angular.
What is a digital signature certificate?
A digital certificate is issued by a certificate authority (CA). It contains the public key for a digital signature and specifies the identity associated with the key, such as the name of an organization. The certificate is used to confirm that the public key belongs to the organization, and the CA acts as the guarantor. Digital certificates must be issued by a trusted authority and are only valid for a specified time. They’re necessary to create a digital signature in a document.
PDF digital signature library
What is a PDF digital signature library?
A PDF digital signature library allows you to securely sign PDF documents using cryptographic technology that validates the document’s authenticity and integrity. These signatures prevent unauthorized changes, ensuring the document remains tamper-proof after signing. Nutrient’s digital signature SDK integrates seamlessly into web, mobile, and server applications, providing flexible signing workflows.
- Ensures document authenticity and compliance with international standards.
- Supports advanced encryption and certificate-based validation.
- Integrates easily with existing applications to enable seamless document signing.
- Reduces manual processes with automated signature workflows.
- Enhances security by preventing post-signing alteration.
How to choose the right PDF library for digital signatures?
Choosing the best PDF library for digital signatures depends on your specific use case, security needs, and compliance requirements. Factors like ease of integration, supported signature standards, and API flexibility should guide your decision.
- Compliance standards — Ensure support for PAdES, XAdES, and other relevant protocols.
- API flexibility — Look for SDKs that integrate smoothly with your tech stack.
- Scalability — Consider how the library handles high-volume signing processes.
- UI customization — Opt for solutions that allow you to tailor the signing interface.
- Security protocols — Prioritize strong encryption and robust certificate management.
What are the best solutions to solve my digital signature problem?
When considering digital signature solutions, it’s important to compare libraries that balance security, usability, and customization. Nutrient’s SDK excels in providing end-to-end digital signature management while maintaining compliance and offering intuitive signing experiences.
- Nutrient SDK — Combines digital and electronic signatures with flexible API support.
- Docusign API — Popular for simple, cloud-based signing, but limited in API extensibility.
- Acrobat Sign SDK — Offers enterprise-grade solutions but less flexibility for developers.
- Dropbox Sign API — A lightweight solution with limited customization options.
What are the benefits of using Nutrient’s digital signature SDK?
Nutrient’s digital signature SDK delivers a competitive advantage by offering a highly secure, customizable, and developer-friendly platform for implementing digital and electronic signatures.
- End-to-end security — Protects sensitive data with advanced encryption.
- Customizable signing workflows — Adapt signing interfaces to your application’s needs.
- Seamless API integration — Integrates easily with your web, mobile, or server platforms.
- Scalable for enterprise needs — Handles high-volume signature requests without lag.
- Compliance with global standards — Ensures adherence to GDPR, eIDAS, and other regulatory frameworks.
How does Nutrient’s SDK compare to other digital signature solutions?
When comparing Nutrient’s digital signature SDK with competitors, it stands out due to its combination of security, flexibility, and ease of integration. Nutrient offers superior API extensibility and UI control, making it ideal for developers who need customizable solutions.
- More API control — Allows developers to fine-tune the signing process.
- Stronger security compliance — Meets global security standards with built-in encryption.
- Faster implementation — Reduces development time with ready-to-use SDKs.
- Broader device support — Ensures compatibility with web, mobile, and server environments.
- Developer-friendly documentation — Comprehensive guides and support ensure smooth integration.