Stamp any custom text — CONFIDENTIAL, DRAFT, your name, or copyright — on all PDF pages instantly. Customize color, size, opacity & angle. No server upload, completely private.
Set your text and style, then select your PDF
Live Preview
Stamping your PDF with a watermark takes under 30 seconds with full customization.
Enter your watermark text or pick a quick stamp like CONFIDENTIAL, DRAFT, or DO NOT COPY. Customize the color, opacity, size, and angle using the live preview.
Click "Apply Watermark" and select your PDF file. The file loads instantly in your browser — it is never sent to any server.
Your watermarked PDF downloads instantly with the stamp applied to every page — no watermark on the download itself, just yours.
All processing runs inside your browser. Your PDF never touches any server. Your document stays completely private.
Not sure what to write? Here are the most commonly used PDF watermark texts and their purposes.
Used on internal business documents, legal files, HR records, and financial reports that should not be shared outside the organization.
Marks documents as work-in-progress. Used on proposals, reports, and contracts that are not yet finalized or approved for distribution.
Discourages unauthorized duplication. Commonly used on exam papers, certificates, proprietary manuals, and copyrighted materials.
Used when sharing preview copies of work — portfolio pieces, reports, or designs — without releasing the full commercial version.
Indicates that the document is shared for feedback or approval purposes only and should not be treated as a final or official document.
Photographers, writers, designers, and educators use their name or copyright notice to assert ownership over shared creative work.
When you share a PDF — whether it is a business proposal, creative portfolio, academic work, or legal document — anyone can claim it as their own without proper identification. A visible watermark makes ownership immediately clear.
ShoXTools applies your custom watermark text to every page of your PDF simultaneously. Unlike other online tools, all processing happens locally in your browser — your document is never uploaded to any server.
PDF watermarking is used by professionals, creators, educators, and businesses across every industry.
Watermark portfolio PDFs with your name before sharing for client review
Mark proposals, reports, and internal documents as CONFIDENTIAL
Stamp contracts and legal documents as DRAFT before review
Mark exam papers and study materials as DO NOT COPY or SAMPLE
Add copyright watermark before sharing manuscripts or book chapters
Mark medical report copies as FOR REVIEW ONLY before sharing
Professional watermarking features completely free in your browser — no limits, no watermark on output.
Choose any text color and set the exact transparency level with a live preview slider. From subtle to bold.
Set the watermark angle from 0° (horizontal) to 90° (vertical). The classic 45° diagonal is default but fully adjustable.
Adjust the watermark text size from small and subtle to large and prominent — whatever suits your document.
See exactly how your watermark will look on the page before applying it to your PDF. No surprises.
Your watermark is applied to every single page of the PDF automatically. No need to stamp pages one by one.
Your PDF never leaves your browser. All processing is local — no data is ever sent to any server.
One-click presets for CONFIDENTIAL, DRAFT, DO NOT COPY, SAMPLE, FOR REVIEW, and more. Edit after selecting.
ShoXTools never adds its own branding to your document. The only watermark on your PDF is the one you typed.
ShoXTools PDF Watermark tool is and will remain completely free — no subscriptions, no credits, no paywalls.
Everything you need to know about adding watermarks to PDFs online.