Download view only protected PDF from Google Drive

README.md

Step by step guide to downloading protected PDF from Google Drive

1. Open the document in Google Docs
2. Scroll to the bottom of the document, so all the pages are present
3. Open Developer Tools on separate window and choose the Console tab
4. Paste the code
5. Have fun!

download_pdf.js

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];
        console.log("add img ", img);
        if (!/^blob:/.test(img.src)) {
            console.log("invalid src");
            continue;
        }
        let can = document.createElement('canvas');
        let con = can.getContext("2d");
        can.width = img.width;
        can.height = img.height;
        con.drawImage(img, 0, 0);
        let imgData = can.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/1.5.3/jspdf.debug.js';
document.body.appendChild(jspdf); 

amazing!!! worked well for me!

amazing, it completely worked very awesome! Many thank bro!!1

I've created a script that better handles orientation and is fully documented. I tested it and it works perfectly. Just make sure to render all pages in full resolution before downloading. You can do that by zooming in and scrolling through each page until they all load at full resolution. The PDF is downloaded as a set of images so text and table recognition and autofill will not work. If your PDF viewer has OCR, copying text may work but it will probably be buggy. And obviously this is for educational purposes only and should not be used to infringe on any copyright or do anything illegal.

https://github.com/karimelmasry42/google-drive-view-only-pdf-downloader

Thanks! This helped.
I ran into the same issue — most solutions work for simple cases but break with Google Drive or lazy-loaded PDF viewers because not all pages are rendered at once.
I ended up building a small Chrome extension that handles:

• Google Drive preview (no download button)
• Blob / data images
• Long scrolling pages.

It auto-scrolls and captures everything before exporting to PDF: https://github.com/blackcat1323/SnapPDF

Might save someone else the time 👍