Ive waitet way too long

script.js

@@ -0,0 +1,47 @@
+//const c = document.getElementById("pdf_canvas");
+//const pdf_url = "./VO_Mathematik_3.pdf";
+//import * as pdfjsLib from "./pdf.mjs";
+//pdfjsLib.GlobalWorkerOptions.workerSrc = './pdf.worker.mjs';
+//pdfjsLib.getDocument(pdfUrl).promise.then(function(pdfDoc) {
+//  // Continue with further steps.
+//});
+//pdfDoc.getPage(1).then(function(page) {
+//  // Continue with further steps.
+//});
+//const viewport = page.getViewport({ scale: 1 });
+//canvas.width = viewport.width;
+//canvas.height = viewport.height;
+//const ctx = canvas.getContext('2d');
+//const renderContext = {
+//  canvasContext: ctx,
+//  viewport: viewport,
+//};
+//
+//page.render(renderContext);
+//pdfjsLib
+//  .getDocument(pdfUrl)
+//  .promise.then(function(pdfDoc) {
+//    // Handling and rendering logic.
+//  })
+//  .catch(function(error) {
+//    console.log('Error loading PDF file:', error);
+//  });
+//var ctx = c.getContext("2d");
+//ctx.moveTo(0, 0);
+//ctx.lineTo(10000, 10000);
+//ctx.stroke();
+//import pdfjsLib from 'https://cdn.jsdelivr.net/npm/pdfjs-dist@4.9.155/+esm'
+const PDFStart = nameRoute => {
+}
+const startPdf = () => {
+  PDFStart('./VO_Mathematik_3.pdf')
+}
+window.addEventListener('load', startPdf);
+let loadingTask = pdfjsLib.getDocument(nameRoute),
+  pdfDoc = null,
+  canvas = document.querySelector('#cnv'),
+  ctx = canvas.getContext('2d'),
+  scale = 1.5,
+  numPage = 1;
+loadingTask.promise.then(pdfDoc_ => { pdfDoc = pdfDoc_; document.querySelector('#npages').innerHTML = pdfDoc.numPages; GeneratePDF(numPage) });
+const GeneratePDF = numPage => { pdfDoc.getPage(numPage).then(page => { let viewport = page.getViewport({ scale: scale }); canvas.height = viewport.height; canvas.width = viewport.width; let renderContext = { canvasContext: ctx, viewport: viewport }page.render(renderContext); })document.querySelector('#npages').innerHTML = numPage; };