FreePDFNest is a free online PDF watermark tool that stamps every page of your PDF with custom text. Add "CONFIDENTIAL", "DRAFT", your company name, or any custom message — with full control over rotation, color, opacity, and font size. All processing happens in your browser for complete privacy.
When to watermark a PDF
Watermarks protect documents from unauthorized use, indicate draft status, establish ownership, or mark documents as confidential. Common uses include protecting legal documents, marking internal reports, branding portfolios and proposals, and identifying document versions during review cycles.
Frequently Asked Questions
Can I customize the watermark text?
Yes. Enter any text up to 60 characters — your name, company, CONFIDENTIAL, DRAFT, or any custom message.
Can I adjust how visible the watermark is?
Yes. The opacity slider lets you make the watermark nearly invisible (5%) or fully opaque (100%). 20-40% is recommended for most uses.
Is it free?
Yes. FreePDFNest is completely free with no limits, no watermarks added by us, and no signup required.