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Signing a documentkeyboard_arrow_down

Sign a PDF document

Only available with the Full API

To sign an existing approval signature field in a PDF Document:

const doc = await PDFNet.PDFDoc.createFromURL(filename);

// Add an StdSignatureHandler instance to PDFDoc, making sure to keep track of it using the ID returned.
const sigHandlerId = await doc.addStdSignatureHandlerFromURL(certfile, 'password');

// Obtain the signature form field from the PDFDoc via Annotation.
const sigField = await doc.getField('Signature1');

// Tell PDFNetC to use the SignatureHandler created to sign the new signature form field.
const sigDict = await sigField.useSignatureHandler(sigHandlerId);

// Add more information to the signature dictionary.
await sigDict.putName("SubFilter", "adbe.pkcs7.detached");
await sigDict.putString('Name', 'PDFTron');
await sigDict.putString('Location', 'Vancouver, BC');
await sigDict.putString('Reason', 'Document verification.');

Digitally sign PDF files
Full code sample which demonstrates using the digital signature API to digitally sign and/or certify PDF documents.

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