Add Watermark to PDF — Draft & Confidential Marks
Diagonal watermarks for drafts, samples, and confidential packs. Combine with password protection.
Published June 1, 2025 · 1 min read
3 uses per day · 200 MB · TLS encrypted · auto-delete
Mark drafts and confidential copies
Watermarks deter casual sharing of draft contracts, internal pricing, and unreleased creative. RatPDF applies diagonal text across every page while keeping the underlying content readable.
Common labels
- DRAFT — legal and finance review cycles
- CONFIDENTIAL — board packs
- SAMPLE — agency concept PDFs
- Company name — brand protection on leaks
Combine with protection
Watermarks are visual deterrents, not encryption. For sensitive data, also password-protect the file. Not sure which to use first? Read our watermark vs password guide.
Sources & references
Primary references used when researching and fact-checking this guide. See our editorial methodology.
-
Adobe PDF Reference — encryption
— Adobe
PDF password protection and encryption standards (ISO 32000). -
Ghostscript documentation — PDF settings
— Artifex Software
Compression level behavior and PDF output settings.