Stamp every page of your PDF with custom text. Perfect for marking documents as CONFIDENTIAL, DRAFT, or adding your brand name.
Upload your PDF and enter the watermark text.
Drag & drop your file here
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Max 6MB
PDF watermarking is the process of adding visible text or graphics to every page of a PDF document. A watermark appears across the content—typically semi-transparent and often diagonal—to identify the document's status, ownership, or classification. Common examples include "CONFIDENTIAL," "DRAFT," "SAMPLE," or a company logo. Watermarks serve both branding and security purposes: they make it clear who created the document, prevent unauthorized use of drafts, and signal that a document should be handled with care.
Text watermarks are the most common type. They are easy to add, readable at a glance, and can be customized to match your needs. Unlike password protection, watermarks do not restrict access—they simply mark the document. This makes them ideal for sharing drafts with clients, distributing sample documents, or branding internal materials. Watermarks can be applied to existing PDFs without editing the original content, so your layout and formatting stay intact.
Adding a watermark with DocuAI is simple:
No account or signup is required. Your file is processed securely and is never stored on our servers after the watermark is applied.
DocuAI uses AI-powered processing to add watermarks consistently across all pages. The watermark is applied with a professional appearance—diagonal, semi-transparent, and centered—so it is visible without obscuring the main content. Whether your PDF has 10 pages or 100, every page receives the same treatment.
The service is completely free with no watermarks on our own watermarking tool, no page limits, and no hidden fees. We do not retain your files; they are processed in the cloud and deleted immediately. Whether you need to mark a proposal as "DRAFT" before sending it to a client, stamp "CONFIDENTIAL" on legal documents, or add your brand name to a portfolio, DocuAI delivers fast, reliable watermarking without the hassle of desktop software.
PDF watermarks serve many practical needs. Branding: Add your company name or logo to proposals, reports, and marketing materials so recipients know the source. Security: Mark sensitive documents as "CONFIDENTIAL" or "INTERNAL USE ONLY" to discourage unauthorized sharing. Draft marking: When sharing work-in-progress with clients or colleagues, clearly label it as "DRAFT" or "PRELIMINARY" to avoid confusion. Sample documents: Stamp "SAMPLE" or "FOR DEMO ONLY" on trial versions or previews. Copyright: Add "© 2026 Your Company" to protect intellectual property. Whatever your goal, DocuAI makes PDF watermarking quick and hassle-free.
Yes. DocuAI's Watermark PDF tool is completely free. There are no watermarks on our own output, no page limits, and no hidden fees. You can watermark as many PDFs as you need without creating an account.
Yes. You can enter any text up to 50 characters. Common options include "CONFIDENTIAL," "DRAFT," "SAMPLE," or your company name. The default is "CONFIDENTIAL," but you can change it before clicking apply.
Yes. The watermark is applied to every page of your PDF. It appears diagonally across the page in a semi-transparent style so it is visible without obscuring the main content. The same text is used on all pages.
Yes. Your PDFs are processed securely and are never stored on our servers. We do not retain, share, or use your documents for any purpose other than applying the watermark. Your files are deleted immediately after processing.