Add Watermark to PDF Online for Free

Add text watermarks to your PDFs in seconds—100% free, no sign-up required, and your data never leaves your browser.

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How to Add Watermark to PDF pages online for free?

Upload your PDF files, add a custom watermark and download your watermarked PDF instantly. No limitation, no license needed – just a smooth, hassle-free experience.

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With BoldSign, sign any document securely in minutes. It’s free to start, super simple, and keeps your signatures legally binding every time.

Why Use Our Add Watermark to PDF Tool?

Add professional-looking text watermarks to your PDFs without any downloads, registration, or cost.

How it works

This short video shows how easy it is to use our free online tool.

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Why Free?

We built this watermarking tool to add watermarks to PDFs easily and effortlessly for everyone —no fees, no sign-up, no catch. It’s our way of introducing BoldSign, our full-featured eSignature solution trusted by 50,000+ businesses.

Free Tools Built for the Community

BoldSign offers these free online tools as a contribution to society – completely browser-based and free for personal or commercial use, with no watermarks, limits, or hidden costs.

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Testimonials

Why our customers love us

The true measure of our impact lies in the stories shared by our valued partners.

Google Integration, 25 free sends, dashboard, Signature font options, App is very responsive / fast, Emails between sender and signer are good, Audit trail is very helpful, No account needed for signer is great, Mobile experience is good for signer.

Jeremy Kadlec

Edgewood Solutions

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Switch to BoldSign already! It's intuitive to use and affordable for small businesses. I never have to worry about the status of a document because with BoldSign I know. Plus, they let you program the frequency of reminders signatories receive. I'm so glad to have found it!

Sarah Dillard

Kaleidoscope

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We’re using BoldSign successfully in our b2b SaaS platform - as it’s embedded to allow seasonal farm workers and their agribusiness employers to e-sign their employment onboarding documents for the first time. It’s part of the total solution saving the workers and HR managers 50% more time compared to their traditional pen/paper manual process.

Scott Prince

Croft

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Frequently asked questions

No, the tool is free to use—no sign-up required.

Yes, you can position your watermark anywhere—top, center, corners.

No. Your PDF will only include your chosen watermark—no tool branding or marks are added.

Yes. Once all files are uploaded, they will be automatically combined into a single PDF. You can then download the final combined PDF.

Yes. All actions happen locally in your browser. We do not store, access, or transmit your files.

Yes, you can access the tool directly from your mobile browser — no installation required.

There’s no strict limit, but for the best performance, we recommend under 50 files at a time.

Add watermark to PDF free with BoldSign: upload, customize text, font, size, color & position, then download—no sign-up or software needed.

Use BoldSign’s free tool: upload your PDF, add custom text watermark, adjust font, size, color, and download instantly—no Acrobat or sign-up.

Best practices for watermarking PDFs include using a clear, non-intrusive watermark (text or logo), adjusting its transparency so it’s visible but doesn’t affect readability, placing it strategically to prevent removal, and testing its visibility before finalizing.

A watermark in a PDF is a transparent or semi-transparent text or image—like “Confidential” or a company logo—placed on the document’s pages. It helps identify ownership, protect intellectual property, prevent unauthorized use, and reinforce branding.
Use BoldSign’s opacity setting (0–100%) to make your text watermark semi-transparent—clear enough to be seen without blocking the document content.
You can create your own watermark in BoldSign Add Watermark tool by uploading your PDF, entering custom text, and customizing its font, size, color, rotation, and position.
The BoldSign Add Watermark tool automatically applies your watermark to every page of the uploaded PDF—no need to configure each page manually.
No. Once a PDF is signed with BoldSign, the document is locked to protect its integrity. Modifying the page content, such as adding a watermark, will invalidate the signature. To keep the signature valid, add the watermark before signing.

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