GroupDocs.Signature for Node.js via Java

Verify digital signatures in PDF

Ensure the accuracy and validity of all supported e-signatures in a wide array of document formats, including PDF, Word, Excel, Presentations, Images, and ZIP, using GroupDocs.Signature for Node.js via Java.

How to verify signatures in PDF using JavaScript

GroupDocs.Signature can authenticate the presence of specific signatures in a PDF document. Node.js via Java developers can effortlessly enhance their applications by incorporating our verification features.

  1. Load the PDF document into the Signature instance.
  2. Create and configure VerifyOptions to achieve the desired verification results.
  3. Initiate the verification process.
  4. Review and assess the verification outcomes.
const signatureLib = require('@groupdocs/groupdocs.signature')

// Instantiate a Signature object with the document
const signature = new signatureLib.Signature('input.pdf');

// Establish TextVerifyOptions to validate signatures that include specified text
const options = new signatureLib.TextVerifyOptions();
options.setText('signature');
options.setMatchType(signatureLib.TextMatchType.Contains);

// Execute the verification process for document signatures
const result = signature.verify(options);

// Interpret and assess the outcomes of the verification
if (result.isValid()) {
    console.log('\nDocument was verified successfully!');
}
npm i @groupdocs/groupdocs.signature
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Cutting-edge document signing technology

GroupDocs.Signature provides an all-in-one solution for verifying and managing signatures in various office formats. Offering seven signature types and full CRUD operations, it allows for seamless document management and content security.

Signature verification features

Sign corporate documents with ease

Apply digital signatures—whether text-based, image, barcode, metadata, stamps, or digital certificates—to your documents in a secure and customized manner. GroupDocs.Signature for Node.js via Java ensures streamlined and professional corporate document signing.

Signature lifecycle operations

Gain full control over document signatures. List all signatures in a file, verify their authenticity, update them as required, or remove them entirely when necessary, ensuring proper document processing.

Ensure document integrity

Leverage digital certificates to protect your documents from unauthorized changes. Use metadata to secure and track document content, ensuring it remains untampered and confidential.

Customized native signatures

Add tailored native signatures like stickers in PDFs or watermarks in Word documents. These customizable options allow for professional and secure document handling, perfectly suited to corporate environments.

Barcode signatures verification process

This example elucidates the methodology for authenticating barcode signatures embedded within a document.

JavaScript

const signatureLib = require('@groupdocs/groupdocs.signature')

// Submit the document featuring barcode signatures
const signature = new signatureLib.Signature('input.pdf');

// Configure the parameters to validate barcodes against designated text
const options = new signatureLib.BarcodeVerifyOptions();
options.setText('12345');
options.setMatchType(signatureLib.TextMatchType.StartsWith);

// Authenticate the signatures previously affixed to the document
const result = signature.verify(options);

// Check validation report
if (result.isValid()) {
    console.log('\nDocument was verified successfully!');
}
npm i @groupdocs/groupdocs.signature
click to copy
copied
More examples Documentation

Applications of GroupDocs.Signature for Node.js via Java

GroupDocs.Signature for Node.js via Java offers comprehensive document signature management, including the ability to sign over 60 file formats. With support for text, image, barcode, digital certificates, metadata, stamps, and more, GroupDocs.Signature for Node.js via Java empowers you to search, verify, update, or remove signatures effortlessly in formats such as PDFs, MS Office documents, Images, ZIP archives, and more.
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Download GroupDocs.Signature for free or get a trial license for full access!

Useful resources

Explore documentation, code samples, and community support to enhance your experience.

Comprehensive features and supported signatures

Explore the advanced capabilities of GroupDocs.Signature, featuring a diverse range of signature management tools and operations for enhanced document workflows.

Comprehensive signature validation for various formats

GroupDocs.Signature for Node.js via Java simplifies signature verification across multiple document formats, offering robust controls for signature checks. Customize your verification process and ensure documents are signed appropriately.

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