plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<plugin xmlns="http://apache.org/cordova/ns/plugins/1.0" 
        xmlns:android="http://schemas.android.com/apk/res/android" 
        id="cordova-plugin-pdf-viewer-ios" 
        version="1.0.9">
    <engines>
        <engine name="cordova" version=">=10.0.0" />
        <engine name="cordova-ios" version=">=6.0.0" />
    </engines>
   <name>PDFViewer</name>
   <js-module name="PDFViewer" src="www/PDFViewer.js">
      <clobbers target="PDFViewer" />
   </js-module>
   <platform name="ios">
      <config-file parent="/*" target="config.xml">
         <feature name="PDFViewer">
            <param name="ios-package" value="PDFViewer" />
         </feature>
      </config-file>
      <framework src="PDFKit.framework" custom="false"></framework>
      <framework src="PencilKit.framework" custom="false"></framework>
      <source-file src="src/ios/PDFViewer.h" />
      <source-file src="src/ios/PDFViewer.m" />
   </platform>
</plugin>