Secure reader for protected .maipdf files

Open protected PDFs in a controlled app.

MaiPDF turns sensitive PDFs into protected files with account access, device limits, revocation, trace codes, and screen-capture controls a browser page cannot provide.

Download early builds Use the web packer

Now on the Microsoft Store (Windows) and the App Store (iOS). Android, Windows, and macOS direct downloads below.

Why the app exists

The web packer makes a locked HTML reader — handy for quick sharing, but browsers can't enforce screenshot or recording rules at the OS level. The app is the safer environment for files that need real control.

ID

Access you control

Every reader signs in with a MaiPDF account. Decide who can open a file by email, and cap how many devices each person uses.

PDF

One protected file

Everything ships as a single .maipdf package. Create, share, store, and revoke it — all from one place.

LOG

Tracing built in

Per-page watermarks and trace codes tie any screenshot or leak back to a specific license, device, and access event.

Screen capture protection

OS-level protection, active blocking, and per-page tracing — tuned to each platform.

Android Strongest
  • Blocks screenshots and screen recording.
  • App-only reader — never a browser tab.
  • Device and account checks before open.
iPhone & iPad Detect & trace
  • Hides content on recording, mirroring, or AirPlay.
  • Logs screenshot attempts with device and account.
  • Per-page watermarks for tracing.
Windows Desktop
  • Dedicated reader window, not the browser.
  • Detects screen sharing and recording.
  • Account and device check on open.
macOS Desktop
  • Blocks capture inside the reader.
  • Detects sharing and mirroring.
  • Per-page trace codes on every page.

Download MaiPDF

Pick your platform. Install from an official app store, or grab the direct installer. Direct downloads ask for a short confirmation and create a temporary link.

WindowsEXE

Get it from the Microsoft Store, or download the installer directly — your choice.

Updated June 25, 2026

Microsoft Store
AndroidAPK

Best screen-capture protection today. Install directly without waiting for the Play Store.

Updated June 22, 2026

macOSDMG

Signed build for creating and opening protected packages on Mac.

Updated June 22, 2026

MaiPDF is live on the Microsoft Store (Windows) and the App Store (iOS). Android is in review on Google Play — use the direct APK above in the meantime.

How it fits together

1

Protect

Make a .maipdf with email rules, expiry, device limits, and revocation.

2

Send

Share by email, chat, cloud, USB, or any file channel.

3

Sign in

Reader account, device, and license checked before open.

4

Revoke

Pause, revoke, or inspect access anytime from the dashboard.