How to create a QR code for a PDF file

A QR code holds a few thousand characters at most — a PDF is thousands of times bigger than that. So no generator encodes the document itself: it encodes a link to a copy of the document on the web. Everything that goes right or wrong afterwards depends on which link you choose.

Step 1: put the PDF somewhere a phone can open it

The file needs a public web address. If your site already has one — yourdomain.com/menu.pdf — use it. If it doesn't, create a hosted page on Qreator and add a file block: you upload the PDF (up to 20 MB), the file is stored privately and served through a signed link, and visitors get a clean page with a button to open or download it. Dropping a Drive or Dropbox share link into a code works, but your customer usually lands on a preview screen or a sign-in wall first, which is where scans get abandoned.

Step 2: decide whether the code must stay editable

If you encode the file address directly, the code is static: it will point at that exact URL forever. That is fine for a document that never moves, like a one-off event programme. For anything you will reissue — a menu, a tariff sheet, a product manual — use a dynamic code instead. A dynamic code redirects through Qreator, so you can send it to a different file or a different page later, and you see how many people actually scanned it, when and from where.

The difference costs nothing at print time and everything afterwards. A static code on 5,000 printed menus is a reprint the day the file name changes.

Step 3: generate the code from the link

Paste the address of the PDF — or of the page hosting it — into the website field of the generator. The preview updates as you type, and the pre-flight panel tells you the contrast ratio and the minimum size the code can be printed at, so you find out now rather than after the print run.

Step 4: export it at the size it will be printed

For screens, PNG is fine. For anything going to a printer, choose PDF and then the physical size: 20, 30, 40 or 50 mm. You get a vector file at exactly that size with a 4 mm quiet zone already around the code, which is what a print shop needs — no scaling, no guessing at margins, no blurry upscaled pixels. SVG and PDF exports are part of the paid plans; PNG and JPG are free.

• Under 20 mm the code becomes unreliable on cheap paper and older phone cameras — go up a size rather than down.
• Keep the quiet zone empty: no text, no border, no photo bleeding into it.
• Dark code on a light background. Inverted codes are the single most common reason a scan fails.

Step 5: test the whole journey, not just the scan

Scan the printed proof with one iPhone and one Android, on mobile data rather than office Wi-Fi. Check that the PDF opens rather than downloading into a folder the visitor can't find, and check its weight: a 30 MB scanned brochure is a scan that gets abandoned on a train. Export at screen resolution and keep it under about 5 MB.