Add Watermark to PDF Free Online
Add text or image watermarks to PDF files online for free. Customize position, opacity, and rotation. Protect your documents with professional watermarks. No signup required.
Watermarking is one of the most effective ways to protect PDF documents from unauthorized use. Whether you need a "CONFIDENTIAL" stamp on internal reports, a "DRAFT" label on in-progress documents, or your company logo across every page, watermarks communicate ownership and status at a glance. Our free Add Watermark to PDF tool lets you stamp text or image watermarks onto every page of your document. You control the watermark text, font size, color, opacity, rotation angle, and position. For image watermarks, upload your logo or seal and place it anywhere on the page with adjustable transparency. Text watermarks are ideal for status labels — "DRAFT," "CONFIDENTIAL," "SAMPLE," "DO NOT COPY," or "FOR REVIEW ONLY." These labels immediately communicate the document's intended use and discourage unauthorized distribution. Diagonal watermarks across the center of each page are especially effective because they cannot be cropped out without destroying the document content. Image watermarks serve a branding purpose. Placing your company logo, signature, or official seal on documents establishes authenticity and ownership. This is particularly valuable for proposals, contracts, certificates, and reports that are shared externally. For photographers, artists, and content creators, watermarking is essential for protecting portfolios shared as PDF catalogs. A semi-transparent watermark overlay prevents image theft while still allowing clients to review the work. After approval and payment, you can deliver the clean, unwatermarked version. Our tool processes everything in the browser with no file uploads to external servers. Your documents remain private throughout the watermarking process. The output PDF retains all original content, formatting, and quality — only the watermark layer is added.
Common Use Cases
- Marking internal documents as CONFIDENTIAL
- Labeling draft documents before final approval
- Adding company logos to outgoing reports and proposals
- Protecting photography portfolios in PDF format
- Branding certificates and official documents
Frequently Asked Questions
Can I add both text and image watermarks?
Yes. You can add a text watermark, an image watermark, or both simultaneously. Each watermark type has independent position, size, and opacity controls.
Will the watermark affect print quality?
No. Watermarks are added as a transparent overlay layer. The underlying document content, images, and formatting remain at full quality. You can adjust watermark opacity to ensure readability.
Can a watermark be removed after adding it?
Watermarks added by our tool are embedded into the PDF content. While specialized software may attempt removal, a properly configured watermark is difficult to remove cleanly without visible artifacts.