Protection and DRM

The Protection tab is where you control who can do what with your FlipBook's content. Watermarks, copy prevention, print blocking, download blocking, and dev-tools detection — every option is explained below. Use this when your content is paid, confidential, or otherwise needs to stay where you put it.

What protection can (and can't) do

Protection can:

  • Remove the visible download button.
  • Block direct PDF URLs from being crawled or fetched.
  • Disable right-click, text selection, image drag, and keyboard shortcuts.
  • Add visible watermarks to every page.
  • Burn watermarks into downloaded copies and printouts.
  • Block browser print dialogs.
  • Detect when dev tools open and respond (warn, blur, hide).
  • Discourage screenshots with a visible overlay.

Protection can't:

  • Stop screenshots entirely. No web technology can — readers can always photograph their screen.
  • Prevent re-typing or paraphrasing content.
  • Stop a determined attacker with technical skills. Protection raises the cost of piracy, not the impossibility.

Treat protection as deterrence: most casual visitors won't bother to circumvent it, which is enough for most cases. For true DRM, use a hardware-DRM system separately.

Where to find these settings

Two places:

  • Global — FlipBooks → Settings → Protection for site-wide defaults.
  • Per FlipBook — the Protection tab on each FlipBook for per-document overrides.

Most settings have a Global / On / Off / Custom switch — leave on Global to inherit defaults, switch to Custom to override.

All protection options

Admin Bypass

Disable all protection features for logged-in administrators. Useful while you're testing — you can verify the FlipBook works without protection getting in the way.

Default: On (admins bypass).

PDF Password

If your source PDF is password-protected, paste the password here. The plugin uses it to decrypt the PDF for rendering.

  • Readers never see the password.
  • Readers can't access the original encrypted PDF (downloads can also be blocked separately).

Default: empty (no PDF password needed).

Watermark

Adds a watermark to every page. Two types:

Text watermark

Setting

What it does

Type

Text

Text

The text to display (e.g. "CONFIDENTIAL", "DRAFT", or a user's name)

Font Size

Pixel size

Color

Text color (with opacity)

Opacity

0-100%

Rotation

Degrees (e.g. -45° for diagonal)

Repeat

Tile across the page (forms a watermark pattern)

Position

When not tiled: top-left, top-right, top-center, center, bottom-left, etc.

In Download

Burn the watermark into downloaded PDFs

In Print

Burn the watermark into printouts

Image watermark

Setting

What it does

Type

Image

Image

Upload from media library

Image Width

CSS width

Opacity, Rotation, Repeat, Position

Same as text watermark

In Download / In Print

Burn into downloads/prints

Use cases:

  • "CONFIDENTIAL" or "DRAFT" stamps on internal documents.
  • Customer name + timestamp on personalized PDFs (Stamper Addon).
  • Brand logo as a subtle watermark.
  • Anti-piracy watermark that reveals the source if the PDF leaks.

Copy Prevention

A group of toggles that disable common ways to extract content:

Setting

What it does

Disable Right Click

Blocks the browser context menu on the FlipBook

Disable Keyboard Shortcuts

Blocks Ctrl+S, Ctrl+P, Ctrl+C, etc.

Disable Image Drag

Prevents dragging images from the FlipBook

Disable Selection

Blocks text/image selection

Disable Download

Removes the download button from the toolbar

Combine these to make casual content extraction much harder. A determined visitor can still use developer tools, but most won't.

DevTools Detection

Watches for the browser's developer tools opening. When detected:

Action

What happens

Show warning

A visible warning message appears

Blur content

The FlipBook becomes blurry

No action

DevTools detection runs but no UI response

Warning Message — the text shown when Show warning is the action. Default: "Developer tools detected. Please close them to continue."

Note: DevTools detection is unreliable across all browsers. Some browsers (Firefox, Brave) bypass detection entirely. Treat it as a soft deterrent, not a hard block.

Print Protection

Blocks the browser print dialog when readers press Ctrl/Cmd+P or use the toolbar print button. Combine with Disable Keyboard Shortcuts for full coverage.

If you want to allow printing but with a watermark, leave Print Protection off and turn on Watermark → In Print.

Screenshot Deterrent

Shows a configurable message when screenshot keys are detected. Default message: "Screenshots are not permitted."

This doesn't actually prevent screenshots — it just discourages them. Most operating systems don't expose screenshot detection to the browser, so this works inconsistently. Use it more as a "please don't" signal than as enforcement.

Source Path Security

Always-on protection. The plugin serves PDFs through a secure REST proxy endpoint instead of a direct media-library URL. This hides the original PDF file path and prevents direct fetching.

There's no toggle — this is on by default and can't be disabled. Useful if a reader tries to view the page source to find the PDF URL.

Per-FlipBook overrides

The per-FlipBook Protection tab mirrors the global settings but adds:

  • A Global / Custom switch per group — inherit globals or override.
  • The same tristate (Global / On / Off) for individual fields.

This is useful when most FlipBooks share the same protection profile, but one specific FlipBook needs different rules.

Recipes

"Strict — paid content"

  • PDF Password: set (if PDF is encrypted)
  • Watermark: text watermark "PROPERTY OF [COMPANY NAME]", diagonal, 10% opacity, tiled
  • Disable Right Click: On
  • Disable Keyboard Shortcuts: On
  • Disable Selection: On
  • Disable Download: On
  • DevTools Detection: Show warning
  • Print Protection: On
  • Screenshot Deterrent: On
  • Watermark in Download / Print: On

"Branded — public content with subtle branding"

  • Watermark: image (your logo), 5% opacity, bottom-right
  • Disable Right Click: Off
  • Disable Download: Off
  • Print Protection: Off
  • Watermark in Download / Print: On

Your logo appears subtly on every page, including downloads — providing brand reinforcement without restricting use.

"Internal document — viewable but not shareable"

  • Watermark: text "CONFIDENTIAL — INTERNAL USE", diagonal, 8% opacity, tiled
  • Disable Download: On
  • Disable Print: On
  • Disable Selection: On
  • Disable Right Click: On

Approved staff can read; nobody can easily share outside the company.

"Lead magnet (gated download)"

Combine the Lead Capture Addon with:

  • Disable Download (on) — block direct download.
  • Watermark → In Download (on) — when Lead Capture lets the visitor download, the watermark includes their email (via the Stamper Addon).

Advanced: per-user watermarks

For per-reader watermarks (each visitor sees their own name/email on every page), install the Stamper Addon. It uses captured lead data or login info to generate unique watermarks that are burned into downloaded PDFs — so a leaked PDF traces back to the leaker.

Troubleshooting

The download button is still showing.

  • Confirm Disable Download is set to On (or Custom → On) on this FlipBook.
  • Confirm the toolbar Download button is also disabled on the Toolbar tab.

Right-click works on some browsers. Disable Right Click is implemented via JavaScript. Some browsers have anti-anti-context-menu extensions installed that re-enable the menu. There's no perfect fix.

Watermark isn't appearing.

  • Confirm Watermark is On.
  • Confirm Opacity is not 0.
  • Save the FlipBook and reload the front-end page (cache may be stale).
  • Some browsers render high-opacity watermarks with weird antialiasing — try opacity 8-15% for best results.

Watermark text gets cut off.

  • Lower the font size or shorten the text.
  • For long text, use Repeat: On so the watermark tiles instead of running off the page.

DevTools detection fires randomly. Heuristic detection has false positives — some browser extensions and panels can be misidentified as devtools. Switch the action to "No action" if false positives are causing visitor friction.

Print Protection blocks print but I want print with watermark instead. Turn off Print Protection. Then turn on Watermark → In Print. Readers can print, but every page is watermarked.

Disable Download is on, but readers can still right-click and "Save As".

  • Also enable Disable Right Click and Disable Keyboard Shortcuts.
  • Confirm Source Path Security is on (it should be by default) — this blocks direct URL access.
  • Note: a determined user with developer tools can still extract the PDF source. Full DRM requires a hardware-DRM solution.

Next steps

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