What's the difference between Personal and Studio?

Personal ($39) is for one person — unlimited use on one active device at a time. Activate on a new device and the old one signs out. Studio ($199) is for teams and commercial client work — unlimited team members, early access to new tools, and a commercial license.

Do I need an account?

No. Use any tool free up to 5 times per day on compute-heavier tools, and unlimited on lightweight ones. No card, no account, no signup required.

Where are my files processed?

Right on your device. Files never upload to any server. Everything runs in your browser — you can verify in DevTools → Network.

What happens if I use my Personal license on a second device?

The new device activates and the old device signs out. Your license key stays the same — you just move it between devices as needed. No limit on how often you switch.

Does this work on my phone?

Yes. Every tool works on iPhone, Android, tablet, and desktop.

What if I want a refund?

30-day money-back guarantee on both tiers. No questions asked. Email sales@cipherforces.com.

Will you add more tools?

Yes. New tools ship regularly. Your license includes every tool we ever release — Studio members get early access.

Pdf

Watermark PDF

Add text or image watermarks to every page.

PrivateWorks OfflineNo Account

100% Private Works Offline Instant

Drop your PDF(s) here

or click to browse

Max 100MB

Upload a PDF

Add text or image watermarks to your PDF pages.

0/5free today

Deep dive

About Watermark PDF.

Add a Watermark to Every Page of a PDF

Drop a PDF, add a text or image watermark (e.g. "DRAFT", your logo, a copyright notice), and CipherForces stamps every page. Control font, color, opacity, rotation, and position. Everything runs in your browser.

Common Use Cases

Document drafts: Stamp "DRAFT — DO NOT DISTRIBUTE" before sharing work in progress.
Copyright protection: Add your photography or design portfolio copyright line to every page.
Branding: Add your company logo subtly to client deliverables.
Confidentiality: Stamp "CONFIDENTIAL" on legal or financial documents before transmission.

Key Features

Text and image watermarks: Single-line text or drop a PNG logo.
9-position grid: Top-left, top-center, top-right, … or freeform drag.
Opacity + rotation: Subtle 15% opacity diagonal stamp, or a bold 100% horizontal one.
Per-page control: Apply only to specific pages or the whole document.

Privacy: All watermarking is local. No upload.

Three steps

How to use Watermark PDF.

Upload your file

Drag and drop or click to select your file.

Choose settings

Adjust quality, size, or format options.

Download result

Your processed file is ready instantly.

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Why CipherForces

Privacy-first tools that work everywhere.

100% Private

From $39

Works Offline

No Account

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About Watermark PDF.

Add a Watermark to Every Page of a PDF

Common Use Cases

Document drafts: Stamp "DRAFT — DO NOT DISTRIBUTE" before sharing work in progress.
Copyright protection: Add your photography or design portfolio copyright line to every page.
Branding: Add your company logo subtly to client deliverables.
Confidentiality: Stamp "CONFIDENTIAL" on legal or financial documents before transmission.

Key Features

Text and image watermarks: Single-line text or drop a PNG logo.
9-position grid: Top-left, top-center, top-right, … or freeform drag.
Opacity + rotation: Subtle 15% opacity diagonal stamp, or a bold 100% horizontal one.
Per-page control: Apply only to specific pages or the whole document.

Privacy: All watermarking is local. No upload.