@jsreport/node-signpdf/src/helpers/pdfkit/abstract_reference.js

Simple signing of PDFs in node.

/*
PDFAbstractReference by Devon Govett used below.
The class is part of pdfkit. See https://github.com/foliojs/pdfkit
LICENSE: MIT. Included in this folder.
Modifications may have been applied for the purposes of node-signpdf.
*/

/*
PDFAbstractReference - abstract class for PDF reference
*/

class PDFAbstractReference {
    toString() {
        throw new Error('Must be implemented by subclasses');
    }
}

export default PDFAbstractReference;