> ## Documentation Index
> Fetch the complete documentation index at: https://q.odontox.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Prescriptions — Pre-Printed Paper That Actually Works

> Print prescriptions on your pre-printed letterhead with margins that fit your paper, and signatures that come out sharp black on every copy.

Print prescriptions on your pre-printed letterhead with margins that actually fit your paper, and the signature on every copy comes out sharp black instead of a grey ghost. We rewrote the print path because the previous "Print on Physical Letterhead" mode was still double-printing the digital header on top of your pre-printed one, which clinics had been working around with sticky tape.

## What's new

* **Physical-letterhead mode is now correct.** Pick "Print on Physical Letterhead" and the PDF contains only the medical content — Rx number, patient, medications, diagnosis, signature — with proper top and bottom margins to land in the writable zone of your pre-printed paper.
* **Default safe-zone margins of 60mm top and 32mm bottom.** Most clinic letterheads fit cleanly inside the default on the first try.
* **Allowed range widened to 5–120mm top and 5–100mm bottom.** Clinics with very tall letterhead designs can dial in the exact values they need.
* **Crisp opaque-black signatures.** The signature compositor re-tints every stroke pixel to pure black at full opacity before embedding. A faint pencil signature comes out as a sharp black one.
* **The "Dr." prefix is consistent.** Doctor and admin accounts always print as "Dr. {Name}" — across the app, the prescription, the receipt and every other exported document.
* **A double-submit guard on Save.** A fast double-click on Save no longer issues two prescription numbers for the same patient.

## How to use it

<Steps>
  <Step title="New Prescription">From an appointment or patient record, click **New Prescription**.</Step>
  <Step title="Pick medications, dosage and notes">Fill in the prescription details.</Step>
  <Step title="Choose letterhead mode">In the bottom toolbar, choose **Digital letterhead** for an OdontoX-branded PDF, or **Physical letterhead** if you want to print on your own pre-printed paper.</Step>
  <Step title="Dial in margins for physical letterhead">The defaults work for most letterheads — preview before printing if you have a tall design.</Step>
  <Step title="Save & Print">The signature on the printed copy will be sharp black.</Step>
</Steps>

## What changed since the last revision

* Physical-letterhead mode no longer duplicates the clinic header and footer.
* Margins now accept 5–120mm top and 5–100mm bottom; defaults are 60 and 32.
* Signatures print opaque black.
* The "Dr." prefix is consistent across all documents.
* The Save button is protected against double-clicks.

## Need help?

If anything is unclear, write to [support@odontox.io](mailto:support@odontox.io) or open a ticket from **Settings → Support**.