Free PDF Tool
PDF Watermark
Add Custom Text Free
Add a custom text watermark to any PDF — CONFIDENTIAL, DRAFT, your company name, or anything else. Control the position and opacity so the watermark is visible but doesn't obscure the content. Ideal for protecting documents before sharing drafts. Runs entirely in your browser.
Drag & drop your PDF here
Watermark "CONFIDENTIAL" will be applied
File never leaves your device
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Common Uses
📋 Draft Documents
Mark drafts with DRAFT before sharing for review — prevents accidental use of unfinished docs.
🔒 Confidential Reports
Add CONFIDENTIAL to financial reports, salary data, or client documents.
🏢 Company Branding
Add your company name or logo text to documents before sending to clients.
📝 Sample Documents
Mark sample or template documents with SAMPLE to prevent misuse.
Frequently Asked Questions
What text can I use as a watermark?
Any text up to 40 characters — CONFIDENTIAL, DRAFT, your company name, DO NOT COPY, SAMPLE, etc.
Can I control how visible the watermark is?
Yes. The opacity slider lets you set the transparency from very faint (5%) to quite visible (60%).
Can I remove the watermark later?
Watermarks added by this tool are burned into the PDF and cannot be removed by standard tools. Use a low opacity if you might need to share the original later.
What positions are available?
Centre diagonal (most common), bottom centre, or top centre.