QR codes are no longer limited to payments or product tracking. They’ve become a reliable way to verify the authenticity of digital files. When used for signing, a QR code is a digital stamp that keeps signature data in an encrypted, scannable form. If you deal with PDF documents and need a simple yet reliable way to verify them, embedding QR code signatures is a smart move. In this guide, you’ll learn how to sign PDFs with QR code signatures in Java applications programmatically using the Java REST API, making your signing process more secure and effortless.

Steps to Sign PDF With QR Code Signatures Using Java

1. Download the GroupDocs.Signature Cloud SDK for Java and create a Java project
2. Obtain and set up your API credentials using the Configuration class
3. To add QR code signatures to PDF, initialize the SignApi class
4. Add the source file using the FileInfo class
5. Configure the QR code signature properties using SignQRCodeOptions
6. Define the e-sign settings using SignSettings
7. Create and execute the signing request with the createSignatures() method

You can embed a QR code signature in your PDF without complex setups. The Cloud API lets you generate and place a QR code anywhere within the document. The process stays entirely in the cloud, thus needing no manual file handling or local storage. Signing PDFs with QR codes boosts document security and adds traceability. Anyone with access can scan the QR code to instantly confirm the signer’s details. Automate repetitive PDF signing tasks seamlessly using the REST API.

Code to Sign PDF With QR Code Signatures Using Java

Adding QR code signatures to PDF documents using the GroupDocs.Signature Cloud Java SDK is a clean and efficient way to handle document verification. Managing contracts, certificates, or reports with our Java REST API guarantees authenticity and saves time. It’s a modern, tamper-resistant alternative to handwritten or image-based signatures. You can set it up once and reuse it for bulk PDF signing operations across Java projects, ensuring consistency and compliance without additional effort.

You can also check out our related guide on Signing PDFs with Text Signatures Using the Java REST API for more flexibility in your digital signature workflow.