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‎Document-Processing-toc.html‎

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</ul>
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</li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/mobile-toolbar">Mobile Toolbar Interface</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/toolbar">Toolbar Customization</a>
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<li><a href="/document-processing/pdf/pdf-viewer/react/toolbar-customization/overview">Toolbar</a>
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<ul>
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<li><a href="/document-processing/pdf/pdf-viewer/react/toolbar-customization/primary-toolbar">Primary Toolbar</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/toolbar-customization/annotation-toolbar">Annotation Toolbar</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/text-search">Text Search</a></li>
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<li>Annotation
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<ul>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/text-markup-annotation">Text Markup Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/shape-annotation">Shape Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/stamp-annotation">Stamp Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/sticky-notes-annotation">Sticky NotesAnnotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/measurement-annotation">Measurement Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/free-text-annotation">Free Text Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/ink-annotation">Ink Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/line-angle-constraints">Line Angle Constraints</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/comments">Comments</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/signature-annotation">Handwritten signature</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-event">Annotations Events</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotations-in-mobile-view">Annotations in Mobile view</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/overview">Overview</a></li>
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<li>Annotation Types
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<ul>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/highlight-annotation">Highlight</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/underline-annotation">Underline</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/strikethrough-annotation">Strikethrough</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/squiggly-annotation">Squiggly</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/line-annotation">Line</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/arrow-annotation">Arrow</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/rectangle-annotation">Rectangle</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/circle-annotation">Circle</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/polygon-annotation">Polygon</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/ink-annotation">Ink</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/stamp-annotation">Stamp</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/sticky-notes">Sticky Notes</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/redaction-annotation">Redaction</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/free-text-annotation">Free Text</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/distance-annotation">Distance</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/perimeter-annotation">Perimeter</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/area-annotation">Area</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/radius-annotation">Radius</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-types/volume-annotation">Volume</a></li>
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</ul>
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</li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/toolbar-customization/annotation-toolbar">Annotation Toolbar</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/create-modify-annotation">Create and modify Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/customize-annotation">Customize Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/delete-annotation">Remove Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotations-undo-redo">Undo or Redo Annotation Changes</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-permission">Annotation Permission</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/signature-annotation">Handwritten Signature</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/line-angle-constraints">Line Angle Constraint</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/custom-data">Adding custom Data in annotations</a></li>
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<li>Export and Import Annotations
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<ul>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/export-import/export-annotation">Export Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/export-import/import-annotation">Import Annotation</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/export-import/export-import-events">Export and Import Events</a></li>
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</ul>
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</li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/comments">Comments and Replies</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotation-event">Annotation Events</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/custom-tools">Custom tools</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotations-in-mobile-view">Annotation in Mobile View</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/annotation/annotations-api">APIs</a></li>
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</ul>
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</li>
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<li>Redaction
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<li><a href="/document-processing/pdf/pdf-viewer/react/forms/form-fields-api">APIs</a></li>
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</ul>
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</li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pdf">Organize Pages</a>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/overview">Organize Pages</a>
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<ul>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/overview">Overview</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/copy-pages">Copy pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/import-pages">Import pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/insert-blank-pages">Insert blank pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/remove-pages">Remove pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/reorder-pages">Reorder pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/rotate-pages">Rotate pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/zoom-pages">Zoom pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/extract-pages">Extract Pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/programmatic-support">Programmatic Support</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/ui-interactions">UI Interactions</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/toolbar">Toolbar</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/extract-pages">Extract Pages</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/mobile-view">Mobile View</a></li>
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<li><a href="/document-processing/pdf/pdf-viewer/react/organize-pages/events">Events</a></li>
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</ul>

‎Document-Processing/PDF/PDF-Library/javascript/DigitalSignature.md‎

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// Destroy the document
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document.destroy();
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{% endhighlight %}
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{% endtabs %}
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## Sign existing signature field
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This section explains how to sign an existing unsigned signature field in a PDF using the JavaScript PDF library. You can locate predefined signature fields and apply a digital signature directly by calling `PdfSignatureField.setSignature()` method, without altering the document layout. This is ideal for templates where signature placeholders already exist, allowing you to add digital signatures to the field using a certificate and signature settings.
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{% tabs %}
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{% highlight typescript tabtitle="TypeScript" %}
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import {PdfDocument, PdfForm, DigestAlgorithm, CryptographicStandard, PdfSignatureField} from '@syncfusion/ej2-pdf';
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// Load an existing PDF document
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let document: PdfDocument = new PdfDocument(data);
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// Access loaded form
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let form: PdfForm = document.form;
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// Access the loaded form field
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let field: PdfSignatureField = form.fieldAt(0) as PdfSignatureField;
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// Create a digital signature with CMS + SHA-256
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const signature: PdfSignature = PdfSignature.create(certificate, 'password', {
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digestAlgorithm: DigestAlgorithm.sha256,
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cryptographicStandard: CryptographicStandard.cms
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});
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// Apply the signature to the field
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field.setSignature(signature);
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// Save the document
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document.save('Output.pdf');
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// Close the document
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document.destroy();
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{% endhighlight %}
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{% highlight javascript tabtitle="JavaScript" %}
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// Load an existing PDF document
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var document = new ej.pdf.PdfDocument(data);
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// Access loaded form
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var form = document.form;
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// Access the loaded form field
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var field = form.fieldAt(0);
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// Create a digital signature with CMS + SHA-256
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const signature = ej.pdf.PdfSignature.create(certificate, 'password', {
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digestAlgorithm: ej.pdf.DigestAlgorithm.sha256,
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cryptographicStandard: ej.pdf.CryptographicStandard.cms
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});
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// Apply the signature to the field
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field.setSignature(signature);
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// Save the document
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document.save('Output.pdf');
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// Close the document
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document.destroy();
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{% endhighlight %}
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{% endtabs %}
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## Remove existing digital signature
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This section explains how to remove an existing digital signature from a PDF by using `PdfForm.removeField()` method to delete the signature field entirely. Removing the field clears the signature dictionary, allowing the document to be edited, corrected, or re‑signed as needed. This is useful when preparing a PDF for updates or resolving signature‑related issues.
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{% tabs %}
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{% highlight typescript tabtitle="TypeScript" %}
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import {PdfDocument, PdfForm, PdfSignatureField} from '@syncfusion/ej2-pdf';
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// Load an existing PDF document
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let document: PdfDocument = new PdfDocument(data);
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// Access loaded form
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let form: PdfForm = document.form;
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// Access the loaded form field
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let field: PdfSignatureField = form.fieldAt(0) as PdfSignatureField;
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// Remove the signature field
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if (field instanceof PdfSignatureField) {
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document.form.removeField(field);
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}
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// Destroy the document
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document.destroy();
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{% endhighlight %}
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{% highlight javascript tabtitle="JavaScript" %}
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// Load an existing PDF document
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var document = new ej.pdf.PdfDocument(data);
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// Access loaded form
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var form = document.form;
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// Access the loaded form field
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var field = form.fieldAt(0);
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// Remove the signature field
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if (field instanceof ej.pdf.PdfSignatureField) {
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document.form.removeField(field);
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}
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// Destroy the document
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document.destroy();
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{% endhighlight %}
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{% endtabs %}
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## Document revisions
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Digital signatures in a PDF create new revisions, keeping every previous version intact. These revisions let you see how the document looked when each signature was applied and check if anything changed later. You can access all revisions using `PdfDocument.getRevisions()` method or get a specific one using `PdfSignatureField.getRevision()` method.
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{% tabs %}
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{% highlight typescript tabtitle="TypeScript" %}
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import {PdfDocument, PdfForm, PdfSignatureField} from '@syncfusion/ej2-pdf';
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// Load an existing PDF document
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let document: PdfDocument = new PdfDocument(data);
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// Access loaded form
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let form: PdfForm = document.form;
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// Access the loaded form field
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let signature: PdfSignatureField = form.fieldAt(0);
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// Retrieve all revision indexes of the PDF document
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let revisions: number[] = document.getRevisions();
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// Gets the revision number associated with the signature field
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let revision: number = signature.getRevision();
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// Destroy the document
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document.destroy();
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{% endhighlight %}
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{% highlight javascript tabtitle="JavaScript" %}
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// Load an existing PDF document
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var document = new ej.pdf.PdfDocument(data);
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// Access loaded form
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var form = document.form;
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// Access the loaded form field
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var signature = form.fieldAt(0);
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// Retrieve all revision indexes of the PDF document
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var revisions = document.getRevisions();
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// Gets the revision number associated with the signature field
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var revision = signature.getRevision();
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// Destroy the document
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document.destroy();
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{% endhighlight %}
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{% endtabs %}

‎Document-Processing/PDF/PDF-Library/javascript/FormFields.md‎

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{% endhighlight %}
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{% endtabs %}
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## Add a date field to a PDF form
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This section shows how to add a date field to a PDF form, allowing users to enter or select a date within the document. The JavaScript PDF library lets you configure the date field’s appearance, format, and behavior. You can also attach actions that run custom scripts or validations whenever the field is focused, changed, or submitted.
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{% tabs %}
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{% highlight typescript tabtitle="TypeScript" %}
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import {PdfDocument, pdfPage, PdfForm, PdfTextBoxField, PdfJavaScriptAction } from '@syncfusion/ej2-pdf';
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// Create a new PDF document
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let document: PdfDocument = new PdfDocument();
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// Add a new page to the document
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let page: pdfPage = document.addPage();
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// Access loaded form
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let form: PdfForm = document.form;
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// Create a new text box field
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const field: PdfTextBoxField = new PdfTextBoxField(page, 'DateField', {
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x: 50, y: 200, width: 150, height: 20,
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});
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// Sets the text value to text box field
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field.text = '18/08/2003';
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// Sets date formate
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const format: string = 'yyyy-mm-dd';
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// Add a JavaScript action to run custom scripts or validations
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field.actions.format = new PdfJavaScriptAction(`AFDate_FormatEx("${format}");`);
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field.actions.keyPressed = new PdfJavaScriptAction(`AFDate_KeystrokeEx("${format}"):`);
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field.actions.validate = new PdfJavaScriptAction(`AFDate_Validate("${format}");`);
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// Add a new form field
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form.add(field);
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// Save the document
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document.save('output.pdf');
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// Destroy the document
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document. Destroy();
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{% endhighlight %}
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{% highlight javascript tabtitle="JavaScript" %}
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// Create a new PDF document instance
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var document = new ej.pdf.PdfDocument();
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// Add a new page to the document
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var page = document.addPage();
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// Access loaded form
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var form = document.form;
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// Create a new text box field
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const field = new ej.pdf.PdfTextBoxField(page, 'fieldF', {
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x: 50, y: 200, width: 150, height: 20
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});
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// Sets the text value to text box field
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field.text = '18/08/2003';
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// Sets date formate
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const format = 'yyyy-mm-dd';
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// Add a JavaScript action to run custom scripts or validations
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field.actions.format = new ej.pdf.PdfJavaScriptAction(`AFDate_FormatEx("${format}");`);
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field.actions.keyPressed = new ej.pdf.PdfJavaScriptAction(`AFDate_KeystrokeEx("${format}"):`);
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field.actions.validate = new ej.pdf.PdfJavaScriptAction(`AFDate_Validate("${format}");`);
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// Add a new form field
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form.add(field);
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// Save the document
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document.save('Output.pdf');
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// Destroy the document
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document. Destroy();
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{% endhighlight %}
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{% endtabs %}
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## Field Auto Naming
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To prevent grouping when adding fields with the same name, you can enable the `fieldAutoNaming` property of `PdfForm` class. Setting fieldAutoNaming to true ensures that each field gets a unique name internally, even if you specify the same name during creation.

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