GroupDocs.Signature enables Node.js via Java developers to protect PDF documents from modifications by employing digital signatures. Enhance your business applications with comprehensive data security features.
const signatureLib = require('@groupdocs/groupdocs.signature')
// Utilize Signature to apply a digital signature to the document
const signature = new signatureLib.Signature('input.pdf');
// Provide the required digital certificate and password
const options = new signatureLib.DigitalSignOptions('certificate.pfx');
options.setPassword('1234567890');
// Configure visual signature settings if necessary
options.setPageNumber(1);
options.setLeft(100);
options.setTop(100);
// Encrypt the document using the digital certificate
const result = signature.sign('output.pdf', options);
GroupDocs.Signature for Node.js via Java is built to sign all major file formats, offering you the ability to add, adjust, verify, or remove various types of signatures with ease.
Easily place Text, Image, Barcode, QR-Code, or Stamp signatures on any page of supported documents. You can also insert or edit hidden metadata, such as EXIF in images. Protect your document content from unauthorized alterations with digital certificates.
Post-signing, your document can undergo multiple verifications. Confirm the integrity of the signed content, or conduct a detailed search to list all existing signatures.
Most signature types allow for post-creation edits. You can easily modify text, reposition elements, adjust colors, resize, and make other necessary changes.
Our solution enables full CRUD operations for signatures. If required, you can remove various signature types, including digital certificates, from your document.
const signatureLib = require('@groupdocs/groupdocs.signature')
// Provide the document that requires signing
const signature = new signatureLib.Signature('input.pdf');
// Use an appropriate digital certificate and its password
const options = new signatureLib.DigitalSignOptions('certificate.pfx');
options.setPassword('1234567890');
// Include any additional text information
options.setReason('Security issue');
options.setContact('John Smith');
options.setLocation('Office D.W.');
// Add visual elements like images for the signature representation
options.setImageFilePath('image.png');
options.setAllPages(true);
options.setVerticalAlignment(signatureLib.VerticalAlignment.Bottom);
options.setHorizontalAlignment(signatureLib.HorizontalAlignment.Right);
options.setWidth(80);
options.setHeight(60);
const padding = new signatureLib.Padding();
padding.setBottom(10);
padding.setRight(10);
options.setMargin(padding);
// Save the digitally secured document to a specified location
const result = signature.sign('output.pdf', options);
Download GroupDocs.Signature for free or get a trial license for full access!
Explore documentation, code samples, and community support to enhance your experience.
We proudly support a comprehensive suite of signature options and functionalities
The Node.js via Java API supports over 60 formats, enabling you to apply a range of signatures on any page, enforce content security with digital certificates, and manage signatures within the document effectively.
