Can I add both text and image watermarks?

Yes. You can add custom text strings with custom fonts and colors, or upload transparent PNG company logos.

Can I choose which pages receive the watermark?

Yes. You can apply the watermark across all pages, odd pages only, even pages only, or a custom page range.

Will the watermark be placed above or below the document text?

You can toggle the watermark layer between 'Over Content' (for prominent security stamps) and 'Under Content' (for subtle background letterhead).

Can recipients easily remove the watermark?

The watermark is merged directly into the page's vector content stream, making it difficult to remove without specialized PDF editing tools.

Are my copyrighted documents uploaded to an external server?

No. All watermarking processing is performed 100% locally inside your web browser.

How do I add a 'CONFIDENTIAL' or 'DRAFT' text watermark across all PDF pages?

Type 'CONFIDENTIAL' or 'DRAFT' in the text field, adjust font size, opacity (e.g. 30%), color, and angle (such as 45° diagonal), then click 'Apply Watermark'. The watermark is rendered uniformly across all document pages.

Can I add a company logo watermark with custom transparency?

Yes. Upload your company logo (PNG/JPG), position it centrally or in a corner, set the transparency percentage, and generate a stamped PDF that protects your brand intellectual property.

PDF Editing & Security

Watermark PDF (Add Custom Text & Logo Watermarks)

Overlay customizable text or logo watermarks onto your PDF pages in your browser.

TL;DR: Watermark PDF applies custom text stamps (e.g., CONFIDENTIAL, DRAFT) or company logos over PDF pages with adjustable opacity, angle, and positioning.

Drag & drop your PDF here

or click to browse from your device

Or press Ctrl + V to paste

PDF Password-Protected OK Multi-Page Up to 100MB

100% local browser processing — this file never leaves your device

How do I add a watermark to a PDF document online?

To add a watermark to a PDF, upload your file to NexLove's Watermark PDF tool. Enter your watermark text (or upload a logo image), adjust font size, rotation angle (e.g., 45°), and opacity slider, then click 'Apply Watermark' to download your branded PDF document locally.

How to Use Watermark PDF

Upload your PDF document into the watermarking workspace.
Select watermark type: 'Text Stamp' or 'Logo Image'.
Customize text string, font color, size, rotation angle, and opacity.
Click 'Apply Watermark & Download' to save your branded PDF.

Expert Tips for Watermark PDF

Diagonal 45° Stamp: A semi-transparent diagonal watermark across the center of each page prevents unauthorized distribution while keeping text legible.
CONFIDENTIAL & DRAFT Presets: Use quick presets for common stamps like 'CONFIDENTIAL', 'DRAFT', 'SAMPLE', or 'FOR INTERNAL REVIEW'.
Logo Transparency: Set image watermark opacity to 15%–25% so company branding appears professional without obscuring document content.

Related Guides & Tutorials

How to Compress PDF Without Losing Quality — Learn raster downsampling, font subsetting, and DPI optimization strategies.
Reduce PDF File Size Guide for Email & Web — Optimize heavy multi-page documents under strict email limits.

100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: Yes. You can add custom text strings with custom fonts and colors, or upload transparent PNG company logos.
: Yes. You can apply the watermark across all pages, odd pages only, even pages only, or a custom page range.
: You can toggle the watermark layer between 'Over Content' (for prominent security stamps) and 'Under Content' (for subtle background letterhead).
: The watermark is merged directly into the page's vector content stream, making it difficult to remove without specialized PDF editing tools.
: No. All watermarking processing is performed 100% locally inside your web browser.
: Type 'CONFIDENTIAL' or 'DRAFT' in the text field, adjust font size, opacity (e.g. 30%), color, and angle (such as 45° diagonal), then click 'Apply Watermark'. The watermark is rendered uniformly across all document pages.
: Yes. Upload your company logo (PNG/JPG), position it centrally or in a corner, set the transparency percentage, and generate a stamped PDF that protects your brand intellectual property.

Cite This Tool

Referencing this tool in an article, paper, or documentation? Copy a standard citation below:

NexLove.org. (2026). Watermark PDF [Software]. https://nexlove.org/tools/watermark-pdf

“Watermark PDF.” NexLove.org, 2026, nexlove.org/tools/watermark-pdf.

NexLove.org (2026) Watermark PDF. Available at: https://nexlove.org/tools/watermark-pdf (Accessed: 2026).

@misc{nexlove_watermark_pdf,
  title = {Watermark PDF},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/watermark-pdf}
}

Embed This Tool

Add the live Watermark PDF to your own website with this lightweight responsive iframe:

<iframe src="https://nexlove.org/embed/watermark-pdf.html" width="100%" height="650" style="border:1px solid #e2e8f0;border-radius:12px" title="Watermark PDF — NexLove.org" loading="lazy"></iframe>

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