@compdfkit_pdf_sdk/react_native/lib/module/annotation/form/CPDFSignatureWidget.js

ComPDFKit for React Native is a comprehensive SDK that allows you to quickly add PDF functionality to Android, iOS, and React Native applications.

/**
 * Copyright © 2014-2025 PDF Technologies, Inc. All Rights Reserved.
 *
 * THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
 * AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE ComPDFKit LICENSE AGREEMENT.
 * UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
 * This notice may not be removed from this file.
 */

import { CPDFWidget } from "./CPDFWidget";
import { NativeModules, findNodeHandle } from 'react-native';
const {
  CPDFViewManager
} = NativeModules;

/**
 * Class representing a signature form widget, storing basic information about the signature form.
 * It includes general form attributes as well as the signature content.
 * 
 * @class CPDFSignatureWidget
 * @memberof CPDFSignatureWidget
 */
export class CPDFSignatureWidget extends CPDFWidget {
  constructor(viewerRef, params) {
    super(viewerRef, params);
  }

  /**
   * Adds an image signature to the widget.
   * @param imagePath The path of the image to be added as a signature.
   * @example
   * android support uri format:
   * await widget.addImageSignature('content://media/external/images/media/123');
   * file path:
   * await widget.addImageSignature('/path/to/image');
   * // update the appearance
   * await widget.updateAp();
   * @returns 
   */
  addImageSignature = imagePath => {
    const tag = findNodeHandle(this._viewerRef);
    if (tag != null) {
      return CPDFViewManager.addWidgetImageSignature(tag, this.page, this.uuid, imagePath);
    }
    return Promise.reject(new Error('Unable to find the native view reference'));
  };
}
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