Watermarks show recipients that a document is confidential, a draft, copyrighted, or sample-only — without locking the file the way encryption does. They are visual signals, not access control.
PdfPeaks Watermark PDF lets you stamp text or a logo across pages in the browser before you share a review copy. This guide covers text vs image stamps, opacity, and when you still need Protect or Sign instead.
Text watermarks
Open Watermark PDF, upload your file, and add text such as CONFIDENTIAL, DRAFT, or SAMPLE. Keep opacity moderate so body text stays readable — a watermark that blocks reading defeats the purpose of a review copy.
Image or logo stamps
Upload a PNG logo for brand previews or portfolio samples. Prefer a transparent PNG so you are not covering the page with a white box. Combine with Sign PDF when a draft becomes a final signed agreement.
Watermarks are not encryption
Anyone can screenshot a watermarked page or photograph the screen. For real access control use Protect PDF. For password basics read unlocking password-protected PDFs safely. For covering sensitive lines so they are not obvious on screen, see Mask/Redact — and understand visual cover is not the same as permanent content removal.
Before you send
- Compress large watermarked files for email.
- Merge into one packet when sending multi-part reviews.
- Initial and date finals with Sign PDF — guide: add initials and a date.
FAQ — PDF watermarks
Can recipients remove my watermark?
Determined users with editing tools may try. Treat watermarks as a deterrent and label, not as DRM.
Is Watermark PDF free?
Yes for standard use on PdfPeaks without installing desktop software.
Add your stamp with Watermark PDF — free online.
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