Can I choose any watermark text?

Yes. Type any text — CONFIDENTIAL, DRAFT, your company name, or anything else — in the watermark text field.

How do I make the watermark more or less visible?

Use the Opacity slider. Lower values (e.g. 10–20%) create a subtle background watermark; higher values make it more prominent.

Can I change the angle of the watermark?

Yes. The Rotation field accepts values from -180° to 180°. The default is 45° for a classic diagonal watermark.

Is my PDF uploaded to a server?

No. All processing is done locally in your browser using pdf-lib. Your file is never sent anywhere.

Will the watermark cover the text of my document?

At the default 25% opacity the watermark is subtle and document content remains readable. Adjust opacity to your preference.

Can I remove the watermark later?

Watermarks added by this tool are embedded as content in the PDF, not as a separate layer. Removal requires a dedicated PDF editing tool.

Can I add an image watermark instead of text?

Currently the tool supports text-only watermarks. For image watermarks, use the Edit PDF tool to insert an image on each page manually.

All ToolsPDF ToolsWatermark PDF

Watermark PDF

Add a diagonal text watermark to every page of your PDF. Processed entirely in your browser — nothing is uploaded.

FreeNo upload requiredWorks on all devices

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Watermark PDF

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One PDF file · Max 80 MB · for higher limits

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Your files never leave your device. All processing happens locally in your browser — nothing is uploaded to our servers.Files are never stored on our servers · No tracking of your file contentsPrivacy Policy

What is Watermark PDF?

Watermark PDF stamps a custom diagonal text watermark on every page of your PDF document. Use it to mark documents as CONFIDENTIAL, DRAFT, SAMPLE, or any text you choose. It's ideal for protecting intellectual property, branding shared documents, or visually indicating a document's status — completely free and processed entirely in your browser, with no file ever uploaded. The watermark's color, size, opacity, and angle are all fully customizable. Once watermarked, a common next step is to add page numbers and lock it down with a password before sharing the final version.

How It Works

Upload your PDF, type your watermark text, then adjust the font size, opacity (how transparent it appears), rotation angle, and color using the controls. A live preview shows how the watermark will look before you apply it. When ready, click "Add Watermark & Download" — the tool uses pdf-lib in your browser to draw the text on every page and downloads the result instantly.

How to Use

1
Upload your PDF
Drop your PDF onto the upload zone or click to browse. The file is read locally in your browser.
2
Enter watermark text
Type the text you want to stamp on each page — such as "CONFIDENTIAL", "DRAFT", or your company name.
3
Customize appearance
Adjust font size, color, opacity, and rotation angle to achieve the look you need. A live preview updates instantly.
4
Choose position
Select center diagonal, top-left corner, or another position for the watermark placement.
5
Download
Click "Apply Watermark" to generate and download the watermarked PDF. No uploads, no waiting.

Who Uses This Tool

🔒

Confidential Documents

Stamp CONFIDENTIAL on internal reports, financial statements, and HR documents before sharing externally.

📋

Draft Review Copies

Mark proposals, contracts, and reports as DRAFT so recipients know not to treat them as final documents.

🏢

Brand Protection

Add your company name or logo text to PDFs before distributing to clients to prevent unauthorised redistribution.

📚

Educational Materials

Mark course materials, exam papers, and handouts as SAMPLE or COPYRIGHT PROTECTED before distribution.

🏛️

Legal & Compliance

Indicate document status — DRAFT, FINAL, APPROVED — on legal filings, contracts, and regulatory submissions.

📸

Portfolio Protection

Add a subtle watermark with your name or website to PDF portfolios before sending to clients or posting online.

Why Choose This Tool

Full Visual Customization

Control watermark text, font size, color, opacity, and rotation angle — tailor it exactly to your document's needs.

Live Preview

See how the watermark looks on your actual document before downloading — adjust until it's right.

Applied to Every Page

The watermark is automatically stamped on all pages of the PDF in a single click.

100% Private — No Uploads

pdf-lib runs the entire operation in your browser. Your document never leaves your device.

Five Preset Colors + Custom Picker

Quickly choose gray, red, blue, green, or black — or open the color picker for any custom hex color.

Free to Start — Sign Up for More

Use free with no account for files up to 40 MB. Sign up free to raise your limit to 80 MB, or upgrade to Pro for 250 MB per file.

Also Try

Add Page Numbers Protect PDF Sign PDF Compress PDF Merge PDF Rotate PDF

Key Benefits

100% browser-based — your PDF never leaves your device
Fully customizable: text, font size, opacity, angle, and color
Live preview so you can fine-tune before downloading
Five preset colors plus a full custom color picker
Watermark applied to every page automatically
Free up to 40 MB — sign up free for 80 MB, upgrade to Pro for 250 MB

Frequently Asked Questions

Also Known As

add watermark to pdfpdf watermark toolstamp pdf with textwatermark pdf online freemark pdf as confidentialpdf text stamp

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Free Online Document Tools for Everyone

iLoveDocsTools is used by students, professionals, and businesses across the United States, Canada, United Kingdom, Australia, India, and more than 100 other countries. All tools are browser-based and process files privately — your files never leave your device. Free to use, with Pro plans for unlimited access.

No Upload Required

All processing happens directly in your browser. Your documents are never sent to any server — complete privacy guaranteed for users in the USA, Canada, UK, and worldwide.

Free to Use — Pro Plans Available

Every tool on iLoveDocsTools is free to use. Need more? Upgrade to Pro for unlimited usage, priority access, and no daily limits. Trusted by students, freelancers, and teams across North America and Europe.

Works on Any Device

Whether you are on a Mac, Windows PC, iPhone, or Android in New York, Toronto, London, or Sydney — our tools work instantly in any modern browser.

Looking for free PDF tools in the USA? Free document converters in Canada? Online PDF editors in the UK or Australia? iLoveDocsTools offers 70+ free tools — merge PDF, split PDF, compress PDF, convert Word to PDF, Excel to PDF, JPG to PDF, and many more — all free, all instant, all private. No watermarks. No file size limits. Just free tools that work.