CONVERTCRAFT V3.0: THE NEXT GENERATION

Premium. Private. Pure Performance.

Experience Sub-2s processing speeds with our brand-new V3.0 engine. We've rebuilt everything to give you a Prime Experience where your files never leave your device.

WHY WE ARE DIFFERENT:

  • WASM Powered: Every conversion runs locally on your hardware.
  • Absolute Privacy: Your files are yours. No cloud, no tracking, no compromises.
  • Built for You: We've scaled this platform entirely out-of-pocket for a global creator community.

KEEP THE MISSION ALIVE: 🛡️

Running this infrastructure at this scale costs serious money. We don't sell your data, and we don't run annoying ads. We rely solely on users like you.

If ConvertCraft saved you time or kept your data safe today, help us keep it free and private for everyone.

[ SPEED: INSTANT ][ SWITCH: <100ms ][ LOAD: <2 SEC ]PRIVACY: 100%All systems OK

❤️ Support Our Mission / Donate

💎 Support the Mission ($4.99/mo)☕ One-time Donation

Every dollar keeps another 1,000 users private.

How to Add a Watermark to a PDF Online

Add text or image watermarks to PDF pages in your browser. Free, private, no upload — protect your documents.

Watermarking PDFs is essential for protecting intellectual property, marking documents as drafts, or branding reports before distribution. ConvertCraft makes it easy without any desktop software.

ConvertCraft's PDF Watermark tool adds text or image watermarks to every page of your PDF directly in your browser. Your document never leaves your device.

To add a watermark: open the PDF Watermark tool, upload your PDF, choose between text or image watermark, configure position, opacity, and rotation, then click Apply. The watermarked PDF downloads instantly.

Text watermarks support custom fonts, sizes, colors, and angles. Common presets include "CONFIDENTIAL", "DRAFT", and "SAMPLE" with diagonal positioning for maximum visibility.

Image watermarks let you overlay a company logo or stamp on every page. You can control opacity (typically 10-30% for subtle branding) and position (center, corner, or tiled across the page).

Open PDF Watermark →

Frequently Asked Questions

Can I watermark specific pages only?

Yes. You can select which pages receive the watermark — all pages, odd/even pages, or a custom page range.

Will the watermark affect text selection?

The watermark is added as an overlay layer. Underlying text remains selectable and searchable in PDF readers.

Can I remove a watermark later?

ConvertCraft's watermark tool adds a permanent layer. Always keep an unwatermarked copy of your original document.