Add Watermark to your PDF.

Stamp custom text diagonally across every page. Mark documents as DRAFT or CONFIDENTIAL — no upload, files stay on your device.

📎 Merge ✂️ Split 🔄 Rotate 🗑️ Delete Pages ↕️ Reorder 🖼️ PDF to Image 📑 Image to PDF #️⃣ Page #s 💧 Watermark 📷 Extract Images 🔒 Protect 🔓 Unlock 📝 PDF to Word 📄 Word to PDF 🔴 Redline 🗜️ Compress ✍️ Sign PDF
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How to Add a Watermark to a PDF Online for Free

Protect your documents by adding a diagonal text watermark to every page. Commonly used for marking documents as "CONFIDENTIAL," "DRAFT," "SAMPLE," or adding a company name. The watermark appears on every page at a semi-transparent opacity.

How It Works

Upload your PDF, type your watermark text, and click "Add Watermark." The text is stamped diagonally across every page at 30% opacity in a large font, visible but not overwhelming.

Frequently Asked Questions

Can I remove a watermark after adding it? No — watermarks are permanently added to the PDF. Always keep a copy of the original file.

Can I change the watermark color or position? Currently the watermark is a fixed light gray at 45° across the center of each page.