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Using Robots.txt Generator for printed materials

How to size and format a file so it actually scans / works when printed. Browser-based, free, no signup, runs entirely on your device.

Tool:Robots.txt Generator

Generating a file sounds like it should require an app — and historically it did. Robots.txt Generator runs the same thing in your browser tab, with one tap and no signup.

Use the tool: Robots.txt Generator — Free, no account required, no watermark.

Robots.txt Generator for printed materials

Print is where file generation gets specific. The file needs to scan reliably from a few inches away, under uncontrolled lighting, possibly slightly crumpled or smudged.

Sizing rules

  • Minimum size for scanning at arm's length: 2 cm × 2 cm (about 0.8 inches).
  • For posters meant to be scanned from across a room: at least 10 cm × 10 cm, scaled up linearly with distance.
  • Always include the quiet zone — the empty border. Without it, scanners struggle.

Print-specific tips

Generate at the largest size you'll need, then scale down in the layout — never up. PNG with high error-correction is the safest format for press output. Test with a real phone before you commit to the print run.

Run it in your browser

Robots.txt Generator →

Browser-only. Nothing is sent to a server.

Frequently asked questions

Is Robots.txt Generator truly free?

Yes. No signup, no daily cap, no watermark. The site is supported by ads, not subscriptions.

Can I generate files in bulk?

Yes — drop a list of inputs and Robots.txt Generator runs them all in sequence, packaged into a ZIP for download.

What format does Robots.txt Generator output?

Robots.txt Generator offers PNG (for print), SVG (for web), and plain text (for embedding) where applicable.

Will my file work after Robots.txt Generator shuts down?

Yes — once generated, a file is a standalone artefact. It doesn't depend on Robots.txt Generator continuing to exist.

Related guides

Ready to try it?

Launch the tool: Robots.txt Generator. Runs entirely on your device using open web standards.

Last reviewed May 2026. File-size limits, portal requirements, and software defaults change over time — always verify with the destination platform before uploading time-sensitive documents. References to third-party services and products are for descriptive purposes only and do not imply any partnership or endorsement.