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Watermark PDF

Add a simple watermark to your final PDF.

Drop files here Press Ctrl + V to paste screenshots/files, or select files

Files stay in your browser. Supported: PDF, JPG, PNG, WebP and screenshots.

SENNA BrainWaiting for your document.

Add Watermark Workspace

Click a page to preview. Drag cards to reorder, or use ← → on each page card.

0 pages
✓ Browser-local basic processing ✓ Visual page review before download ✓ Works with PDF, JPG, PNG, WebP ✓ No fake OCR or forced paywall

SENNA PDF guide

Watermark PDF Online Free - Add Text Watermark

SENNA Watermark PDF adds a light text watermark to your final exported PDF after you review page order and content.

How to use Watermark PDF

  1. Upload your PDF or images.
  2. Enter watermark text.
  3. Preview pages and adjust if needed.
  4. Apply watermark and download.

Best use cases

  • Mark drafts or internal copies.
  • Prepare visible ownership on shared files.
  • Add simple labels such as CONFIDENTIAL or SAMPLE.

Privacy-first workflow

SENNA PDF basic tools work inside your browser memory. We removed browser-vault restore logic so Clear truly clears the current workspace and users upload again when they start a new tool.

Related SENNA PDF tools

Helpful document guides

Watermark PDF FAQs

Can I change watermark text?

Yes. Type your preferred text in the watermark field.

Can I add watermark after merging?

Yes. Merge first, then use Watermark PDF.

Is it a legal digital signature?

No. This is a simple visual watermark, not a digital signature.

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