Why can’t a QR code just contain the PDF directly?
QR codes hold a limited amount of data, and a link is the only practical way to point to something as large as a document. Even a short PDF is far too much data to encode reliably in a scannable code; the code would need to be enormous and would still be fragile. Encoding a URL that points to the file is the standard approach every “PDF to QR” tool uses, whether or not it says so.
Where do you host the PDF first?
Anywhere that gives you a direct, public link. Google Drive, Dropbox, your own website, or a file-hosting service all work. Just make sure the link opens the PDF directly rather than a login or preview page, and that it’s set to public rather than private.
Once you have the link, generate the code below
Paste the direct link to your PDF into the tool.