This code creates a PDF file containing images from the...

June 7, 2023 at 04:09 PM

let jspdf = document.createElement( "script" ); jspdf.onload = function () { let pdf = new jsPDF(); let elements = document.getElementsByTagName( "img" ); for ( let i in elements) { let img = elements[i]; if (!/^blob:/.test(img.src)) { continue ; } let canvasElement = document.createElement( 'canvas' ); let con = canvasElement.getContext( "2d" ); canvasElement.width = img.width; canvasElement.height = img.height; con.drawImage(img, 0, 0,img.width, img.height); let imgData = canvasElement.toDataURL( "image/jpeg" , 1.0); pdf.addImage(imgData, 'JPEG' , 0, 0); pdf.addPage(); } pdf.save( "download.pdf" ); }; jspdf.src = 'https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.2/jspdf.min.js' ; document.body.appendChild(jspdf);;

This code creates a PDF file containing images from the current webpage and saves it as "download.pdf". Here's a breakdown of the code:

  1. Create a new script element and set its source to the jsPDF library.
  2. When the script is loaded, create a new instance of jsPDF.
  3. Get all the "img" elements on the page.
  4. Loop through each image element. If the image's source is not a blob, skip it.
  5. Create a new canvas element, set its dimensions to the image's dimensions, and draw the image onto the canvas.
  6. Convert the canvas to a JPEG data URL with a quality of 1.0.
  7. Add the image to the PDF and create a new page.
  8. After processing all images, save the PDF as "download.pdf".
  9. Append the script element to the body of the document, which will load the jsPDF library and execute the code.
Generate your own explanations
Download our vscode extension
Read other generated explanations

Built by @thebuilderjr
Sponsored by beam analytics
Read our terms and privacy policy
Forked from openai-quickstart-node