Outpatient/inpatient scripts
Use A4 pdfOptions; preview first. See A4 demo.
Medical prescriptions & pharmacy label silent print
HIS systems often need A4 prescriptions and small pharmacy labels without browser dialogs. Use HTML/CSS + printHtml / batchPrint via web-print-pdf on Win/Mac/domestic desktops.
Print architecture
Business HTML → printHtml → local WebSocket client → PDF → silent printer output.
Typical scenarios
Shelf / bottle labels
Custom width/height. See Rx labels demo.
Kylin/UOS pharmacy PCs
Integration steps
- Install the desktop client
npm install web-print-pdf- Author HTML/CSS for Rx/labels
- Call
printHtmlorbatchPrintwithprintOptions.printerName - Use preview while tuning layout
A4 prescription parameters
await webPrintPdf.printHtml(
prescriptionHtml,
{ paperFormat: 'A4', printBackground: true, margin: { top: '10mm', bottom: '10mm' } },
{ printerName: '办公室激光', copies: 1 }
);Parameter tips
- Paper: A4 or custom label size in pdfOptions
- Printer: match client printer list
- Batch:
batchPrintat peak—see print options - Errors:
formatPrintError—see error handling
Selection notes
- Manual dialog OK → window.print / Print.js
- Silent named printer → web-print-pdf + client
- Server PDF archive → Puppeteer; desk output still uses client
Troubleshooting
- Clipped content → match pdfOptions to printer paper
- Connection failed → WebSocket troubleshooting
- Extra blank pages → zero HTML margins
Related guides on this site
- This page: medical Rx & labels
- A4 demo / Rx labels demo
- printHtml API / batchPrint API
FAQ
Silent print without browser dialog?
Yes—with web-print-pdf and the local client.
Same code for A4 and labels?
Yes—change pdfOptions paper size and HTML template.
Domestic OS support?
Yes—Kylin/UOS deb clients share the same API.
Peak batch dispensing?
Use batchPrint; per-task options override batch defaults.
vs Lodop overlay printing?
Lodop for legacy overlays; HTML Rx can PoC web-print-pdf in parallel.
Client deployment by platform
The same web-print-pdf front-end runs on Windows, macOS, and Linux/domestic OS—install the matching client on each desktop.