How do I add a watermark to a PDF for free?

Open your PDF in EdgeDocs' Add Watermark tool, type your watermark text (like "Confidential", "Draft", or your company name) or upload an image like your company logo. Adjust the font size, color, opacity, rotation, and position using the live preview. Free users get 3 downloads per day, and your files never leave your browser.

Can I add a watermark to a PDF without Adobe Acrobat?

Absolutely. EdgeDocs lets you add text or image watermarks to any PDF directly in your browser — no software to download, no Adobe subscription needed. You get full control over text, size, color, opacity, rotation, and placement with six position options including a tile (repeat) mode. It works on any device with a modern browser.

How do I add a "Confidential" watermark to a PDF?

Open your document in EdgeDocs' watermark tool — "Confidential" is already the default watermark text. Adjust the opacity to make it semi-transparent, set the rotation to diagonal, choose your preferred color, and use the live preview to see exactly how it looks before applying. This is commonly used for NDAs, internal policies, legal drafts, and HR documents before sharing externally.

Can I add an image watermark like a company logo?

Yes. EdgeDocs supports both text and image watermarks. Upload a PNG or JPG file — such as your company logo or a custom stamp — and adjust the opacity, size, rotation, and position. The live preview shows you exactly how the image watermark will appear on your PDF before you apply it.

Is it safe to watermark PDFs online?

Most online watermark tools require you to upload your PDF to their servers. That means your document — which might contain confidential or privileged content — is processed on third-party infrastructure. EdgeDocs processes watermarks entirely in your browser. Your file never leaves your device, making it the safest option for watermarking sensitive documents like contracts, HR records, or legal drafts.

What customization options are available for watermarks?

EdgeDocs gives you full control over your watermark. For text watermarks: custom text, font size (12–120px), any color via color picker or hex input, opacity (5–100%), rotation (-180° to 180°), and six position options (Center, Top-Left, Top-Right, Bottom-Left, Bottom-Right, and Tile for repeating across the page). For image watermarks: upload any PNG or JPG with the same opacity, rotation, and position controls. A live preview updates in real-time as you adjust settings.

Add Watermark to PDF — Text & Image, No Upload Required

Add text or image watermarks to your PDFs. All processing happens in your browser.

100% Private Processing

Your files never leave your device. All watermarking is done locally in your browser.

Upload PDF

Drop PDF files here or click to browse

Maximum file size: 25MB

Watermark Settings

Watermark Text

Font Size: 48px

Color

Opacity: 30%

Rotation: -45°

Position

🔒 Your files never leave your browser. All processing is done locally.

No-Upload Processing

Network requests during processing: 0

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