@aeolun/muhammara/lib/recipe/split.js

Create, read and modify PDF files and streams. A drop in replacement for hummusjs PDF library

const muhammara = require("../muhammara");
const path = require("path");
const hummusUtils = require("./utils");

/**
 * Split the pdf
 * @name split
 * @function
 * @memberof Recipe
 * @param {string} outputDir - The path for the output pdfs.
 * @param {string} prefix - `${prefix}-${i+1}.pdf`.
 */
exports.split = function split(outputDir = "", prefix) {
  prefix = prefix || this.filename;
  for (let i = 0; i < this.metadata.pages; i++) {
    const newPdf = path.join(outputDir, `${prefix}-${i + 1}.pdf`);
    const pdfWriter = muhammara.createWriter(newPdf);
    hummusUtils.appendPDFPageFromPDFWithAnnotations(
      pdfWriter,
      this.pdfReader,
      i
    );
    pdfWriter.end();
  }
  return this;
};