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); 

Скрипт прикольный, но если в PDF присутствуют ссылки, то они не доступны!