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Protect your PDFs with watermarks? Crafex adds text or image watermarks locally in your browser — custom text, opacity, and position controls. 100% private, no server upload.
100% private — processed locally
Drop PDF files here, or browse
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editing • 100% private, processed locally • Add watermark to PDF free
Use semi-transparent watermarks (30-50% opacity) — visible but doesn't obscure content.
Add 'DRAFT' or 'CONFIDENTIAL' for internal document marking.
Custom logo watermarks protect brand identity on shared PDFs.
Watermark position: diagonal across page center for maximum protection.
Category
editing
Document Utility
Engine
Browser-Based
pdf-lib / tesseract.js / jszip
Privacy
100% Private
Never leaves your device
Everything for add watermark to pdf.
Yes — upload your logo and position it anywhere on the page.
100% private — all processing happens in your browser.
Free, unlimited, no sign-up.
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