Watermark PDF
A watermark is a quiet but powerful signal. It can brand your work, deter unauthorized sharing, or mark a document's status at a glance. Our Watermark PDF tool lets you add custom text — your company name, “DRAFT,” “CONFIDENTIAL,” or any custom message — to every page of your PDF. You control the font, size, color, opacity, and position, so the watermark complements your document instead of distracting from it. All processing runs locally in your browser for complete privacy.
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About this tool
Watermarking serves multiple purposes that often overlap. A diagonal 'DRAFT' watermark across every page prevents a work-in-progress from being mistaken for the final version. A subtle company logo or URL in the corner reinforces brand identity on client deliverables. A bold 'CONFIDENTIAL' stamp communicates the sensitivity of the document even before someone reads a single word. Our tool applies the watermark as a text overlay that is embedded directly into each page — it cannot be removed without editing software, so your mark travels with the document. Because processing is local, you can watermark sensitive documents without uploading them to a server.
How to use
- 1
Upload your PDF
Drag and drop your file into the upload area. The tool accepts any standard PDF. The document stays in your browser's memory — no server uploads.
- 2
Enter your watermark text
Type the text you want to appear on every page. Common choices include company names, URLs, 'DRAFT', 'CONFIDENTIAL', 'INTERNAL USE ONLY', 'DO NOT COPY', or copyright notices. The text can be multiple words — it will appear exactly as typed.
- 3
Customize the appearance
Adjust the font size, color, and opacity to match your document's look. A light gray at 30% opacity creates a subtle watermark that doesn't interfere with readability. A bold red at 60% opacity makes the status unmistakable. Choose the position — center (diagonal across the page), top, bottom, or corner placement.
- 4
Preview before applying
The tool shows a live preview of how the watermark will look on a sample page. Check that the text is readable, appropriately sized, and positioned where you want it. Adjust the opacity up or down — the watermark should be visible without making the underlying text hard to read.
- 5
Download your watermarked PDF
When satisfied with the preview, apply the watermark to all pages and download. The watermark is embedded into each page as a text overlay. Open the file and flip through a few pages to verify the watermark appears consistently and looks as expected.
Common use cases
- Brand client deliverables and proposals with your company name or logo text before sending.
- Mark draft documents as 'DRAFT' or 'WORK IN PROGRESS' to prevent premature distribution.
- Add 'CONFIDENTIAL' or 'INTERNAL USE ONLY' stamps to sensitive business documents.
- Protect creative work and portfolios with a copyright notice before sharing publicly.
- Label document versions — 'V2', 'FINAL', 'APPROVED' — to track which iteration someone is viewing.
Tips & troubleshooting
- •For professional branding, use a subtle light gray watermark at 20–25% opacity in a corner — it's visible enough to identify the source without distracting from the content.
- •Use a diagonal center watermark for 'DRAFT' or 'CONFIDENTIAL' stamps — this position covers the most page area and is immediately obvious even when the document is thumbnail-sized.
- •Include a URL in your watermark to drive traffic back to your site when branded documents are shared.
- •Combine watermarking with password protection for maximum document security: the watermark identifies the document, and the password controls access.
- •If you watermark a document regularly with the same text (like your company name), save a note with your preferred font, size, color, and opacity settings for consistency.
Frequently asked questions
Can I change the position of the watermark?
Yes. You can place the watermark in the center (rotated diagonally across the page — the classic watermark style), at the top or bottom, or in individual corners. The diagonal center position provides the most coverage and is hardest to remove. Corner positions are more subtle and work well for branding.
Will the watermark make my document hard to read?
Opacity control puts you in charge. At 20–30% opacity, a watermark is visible but does not interfere with reading. At 50%+, it becomes more prominent — appropriate for 'DRAFT' or 'CONFIDENTIAL' stamps where the status should be unmistakable. You can preview the effect before applying it to all pages.
Is the watermark permanent? Can someone remove it?
The watermark text is embedded directly into each PDF page as a text overlay. It is part of the page content, not a separate layer that can be easily toggled off. Removing it requires PDF editing software — it's not trivial to strip. For maximum permanence, combine a diagonal center watermark at moderate opacity with password protection.
Can I use an image or logo as a watermark instead of text?
The current tool supports text watermarks with customizable fonts, sizes, and colors. For image-based watermarks (like a company logo), you can use alternative approaches: add your logo to the source document before exporting to PDF, or use image editing software to create a PDF page with the logo as a background layer.
Does watermarking change the PDF file size?
The file size increase is minimal — typically a few kilobytes for the added text instructions. Unlike image overlays, text watermarks add negligible data to the document. The original content is not re-encoded or compressed.
Related tools
Protect PDF
Add password encryption alongside your watermark for layered document security.
Compress PDF
Optimize file size after watermarking for easier sharing.
Redact PDF
Permanently hide sensitive content before adding a watermark and sharing.
Page Numbers
Add page numbers alongside your watermark for complete document preparation.