PDF Watermark Tool
Add a custom text watermark to every page of your PDF. Choose position, font size, and opacity — preview before you download.
Drag & drop your PDF here
or click to browse
.pdf files only · Max 20MB
About Our PDF Watermark Tool
Adding a watermark to a PDF is one of the most effective ways to protect your documents, assert ownership, mark drafts, and brand your professional materials. Whether you need to stamp “CONFIDENTIAL” on sensitive reports, “DRAFT” on documents awaiting approval, or your company name on every page of a distributed PDF, our free PDF watermark tool makes it effortless — no software installation required.
Our tool uses industry-standard PDF processing to overlay your chosen watermark text on every page of the document. Crucially, the watermark is applied as a transparent layer — all your original content (text, images, tables, hyperlinks, and formatting) remains entirely intact. The underlying PDF structure is preserved exactly as-is, with only the watermark annotation added on top.
The built-in live preview renders the first page of your PDF directly in the browser before any upload occurs. As you adjust the watermark text, position, font size, and opacity, the preview updates in real-time — so you see exactly what the final document will look like before committing to the download. This saves time and ensures the result meets your expectations every time.
After watermarking, you may want to compress the resulting PDF to reduce its file size for email, or merge it with other PDFs into a single watermarked document.
How to Add a Watermark to a PDF
- Upload Your PDF: Drag and drop your PDF file into the upload area, or click to browse and select it from your device. Files up to 20MB are supported.
- Configure Watermark Settings: Enter your watermark text (e.g. “CONFIDENTIAL”, “DRAFT”, or your company name), select a position, and adjust the font size and opacity using the sliders.
- Preview in Real-Time: The live preview panel renders the first page of your PDF with the watermark overlaid — exactly as it will appear in the final file.
- Click Apply Watermark: The file is uploaded and processed server-side. The watermark is stamped on every page of the document.
- Download Your PDF: Click “Download Watermarked PDF” to save the result. Your original file is never modified.
Common Uses for PDF Watermarks
- Confidential Documents: Mark sensitive reports, contracts, or legal documents as “CONFIDENTIAL” to restrict unauthorised distribution.
- Draft Control: Stamp “DRAFT” or “NOT FOR DISTRIBUTION” on documents that are still awaiting review or approval.
- Branding: Add your company name or logo text to every page of distributed PDFs, proposals, and client reports.
- Copyright Protection: Assert ownership of creative work, research papers, and design documents before sharing online.
- Sample Documents: Watermark product samples or preview documents with “SAMPLE” to prevent them from being used as the final version.
Frequently Asked Questions
Is the PDF watermark tool free?
Yes, completely free. No account, no subscription, and no limits on the number of PDFs you watermark. Simply upload your PDF, configure the watermark settings, and download the result instantly.
Will the watermark tool alter my original PDF content?
No. The watermark is added as a new text layer on top of each page. All your original content — text, images, tables, fonts, and layouts — remains 100% untouched. Only the watermark layer is added.
Is my PDF uploaded to a server?
Your file is temporarily processed on our secure server solely to apply the watermark. It is never stored, shared, logged, or retained after the download link is generated. The file is discarded immediately after processing.
What positions can I place the watermark?
You can choose from five positions: Center (diagonal, the most prominent), Top Left, Top Right, Bottom Left, and Bottom Right. The live preview shows exactly how the watermark will appear before you download.
Can I control the watermark opacity?
Yes. You can set the opacity anywhere from 10% (subtle, barely visible) to 100% (fully opaque). A lower opacity is ideal for draft documents where readability must be preserved; a higher opacity is best for confidential or branded documents.
What is the maximum PDF file size?
You can watermark PDFs up to 20MB in size. If your PDF is larger, consider using our Compress PDF tool first to reduce the file size before watermarking.