Sensitive Documents Security Guide

Use layered controls so sensitive PDFs stay visible only to the right people, for the right time. Identity, session, document, and lifecycle—four layers you can combine.

Protect Documents Investor Updates
Sensitive PDF security controls

Article

Why Layer Security for Sensitive PDFs?

A single control can be shared or leaked. Layering identity checks, view limits, watermarks, and expiry reduces the chance that the wrong person keeps access or that the link stays valid forever. You also get a clear audit trail of who opened the file.

Framework

4 Layers You Should Enable

Identity

Email verification before reading. Only known recipients open the file.

Session

Set view count and session length.

Document

Add dynamic watermark and no-download.

Lifecycle

Set expiry and revoke old links.

Examples

What This Looks Like in Product

Recipients may need to enter their email before the PDF loads. Once they open it, the dynamic watermark can show their identity on the page.

Email verification gate
Dynamic watermark example

Checklist

Before You Share

  • Classify file sensitivity (internal vs. confidential vs. highly restricted).
  • Enable at least one identity check (e.g. email verification) for external links.
  • Set expiration for every external link.
  • Apply watermark on high-risk files to discourage screenshots and leaks.
  • Review access records after sharing to confirm who opened and when.

FAQ

Quick answers

Start with identity: enable email verification. Then add view limits and expiry, and use watermark on high-risk files.

Yes. You can tighten view limits or disable the link. Use Access Records to see who already opened before revoking.

Read more

Related

Confidential Investor Updates

Secure investor documents.

PDF View Limits Security

Cap opens and expiry.

Secure PDF Sharing Guide

Full control and tracking.

Lost Control of a Shared PDF?

Recovery and revoke.

Updated MaiPDF protection path

Use Online Cloud Sharing for speed; use MaiPDF App DRM when screenshots, forwarding, or device access matter

SendPDFOnline pages now describe MaiPDF as a two-level product family: Online Cloud Sharing creates quick browser links and QR codes, while the MaiPDF App creates protected .maipdf packages for sensitive PDFs that need App DRM controls.

Fast cloud link

Upload a PDF, share a browser link or QR code, and keep read code / modify code management.

Protected .maipdf file

Package the PDF in the MaiPDF App with local encryption, license rules, expiry, open limits, and revoke control.

App-only protections

Use protected viewer, device binding, screenshot-aware controls, watermark trace, and license management where supported.

No web page can fully stop screenshots. MaiPDF App DRM is positioned as the stronger path: reduce casual copying, bind access to identity/devices, revoke licenses, and trace leaks with visible watermark information.

Need stronger control?

Create protected .maipdf documents with MaiPDF App DRM.

Open MaiPDF App DRM

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