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Files & datasheets

Upload files to qr3 and link them to a code — perfect for product datasheets, manuals or certificates.

Attach files to a code

  1. Open the code’s detail page in the dashboard.
  2. In the Files section, upload one or more files (PDF, images, …).
  3. Choose the visibility when uploading:
    • Public (pre-selected in the dashboard) — served at a stable link and shown on the code’s landing page.
    • Private — uncheck Public to store the file without serving it publicly.

One code, several datasheets

A code can hold multiple files. To let a single scan reach all of them, enable landing page mode: the scan opens a qr3-hosted page listing every public file of that code.

When a scan should open one specific document — instead of the landing page with its file list — use the file’s public link as the QR code’s target URL.

  1. Open the code’s detail page.
  2. In the Files section, click Copy public link on the file you want.
  3. Paste the address as a QR code’s target URL.

The link needs no sign-in and opens the file directly in the browser — so a PDF shows in the preview instead of downloading. The button only appears for files whose visibility is Public; private files get no public address.

Replacing the file leaves this link unchanged (see below). If more documents may follow later, the landing page is the better target — it always lists the current files.

Update a datasheet without reprinting

Use Replace on a file to swap its contents while keeping the same download address. The printed QR code keeps working: the link stays identical, only the file behind it changes. Upload the new version, and scans serve the updated datasheet.

Take a file down

Use Delete to withdraw a file: it disappears from the file list and from the landing page, and its public link stops serving it.