Utilities

The @pdftron/collab-server exports a static Utils object that contains several utility functions you can leverage on the server side of your application.

Below is a list of the utilities:

getXFDFMetaData#

This function accepts an XFDF string and returns a set of metadata about the XFDF.

import CollabServer from '@pdftron/collab-server'

const xfdf = `
<?xml version="1.0" encoding="UTF-8" ?>
<xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve">
  <annots>
    <square 
      page="0" 
      rect="14.120,640.680,573.010,782.920" 
      color="#E44234" 
      flags="print" 
      name="3962d1a2-ed4d-a314-6ffb-45127515b4b4" 
      title="PDFTron" 
      subject="Rectangle" 
      date="D:20220114111542-08'00'" 
      width="11.578096400244052" 
      creationdate="D:20220114111542-08'00'"
    />
  </annots>
</xfdf>
`;

const metadata = CollabServer.Utils.getXFDFMetaData(xfdf);

console.log(metadata);
/*
[
  {
    type: "Rectangle",
    pageNumber: 0,
    color?: "#E44234",
    properties: {
      page: "0",
      rect: "14.120,640.680,573.010,782.920",
      color: "#E44234",
      flags: "print",
      name: "3962d1a2-ed4d-a314-6ffb-45127515b4b4",
      title: "PDFTron",
      subject: "Rectangle",
      date: "D:20220114111542-08'00'",
      width: "11.578096400244052",
      creationdate: "D:20220114111542-08'00'",
    }
  }
]
*/