Natisniti: USB Printing

Natisniti allows you to print PDF documents directly from your Android phone to a supported USB printer using a standard USB OTG cable or adapter, without requiring a personal computer or cloud printing service.

Core Features

Direct USB Connection: Connect directly to class 7 USB printers using USB On-The-Go (OTG).
PDF Printing: Open and print multi-page PDF documents.
Page Press Canvas: Preview the selected PDF page with its page number and paper guide. The preview fits the page on screen; print controls determine the printed layout.
Print Controls: Select custom page ranges, multiple copies, and paper sizes including ISO A4, US Letter, and US Legal.
Efficient On-Device Processing: Renders pages in small memory bands to preserve device resources on low-memory devices.
Android Print Integration: Works as a standard Android Print Service and accepts files directly from the Android Share menu.
Optional App Lock: Protect private document previews with an optional local PIN or biometric authentication.

Supported Printer Languages

PCL 5e Monochrome: Full 300 DPI and 600 DPI monochrome raster output.
PostScript Level 2 Monochrome: Full 300 DPI and 600 DPI monochrome raster output.

Important Requirements and Plain Limits

USB Host Support: Your phone must support USB Host / OTG mode, and you must use a suitable USB OTG adapter to connect your printer cable.
Unconfirmed Hardware: Printer models are not yet confirmed on physical hardware in this initial release. Always print the built-in test page first to verify compatibility before sending large jobs.
Specific Supported Protocols: Only printers supporting standard PCL 5e monochrome or PostScript Level 2 monochrome are supported. Host-based printers requiring proprietary boot firmware download (such as HP LaserJet 1000, 1005, 1018, 1020) or proprietary bi-directional handshakes (such as Canon CAPT) are not supported. Epson ESC/P and ESC/P 2 formats remain currently disabled pending independent full-page validation.
Output Verification: The app cannot confirm physical paper emergence solely because the printer received data. If a connection is interrupted mid-job, inspect the paper output tray before re-submitting to prevent duplicate sheets.
File Formats: Direct file selection and sharing support PDF documents. For photos and other document formats, use a source app with built-in Android Print support. Direct photo import is not available in this release.