Watermark PDF Files
Stamp your documents with custom text or image watermarks to protect your copyright or mark drafts.
or drag & drop your PDF here
How to Add a Watermark to a PDF
- Upload Document: Drag your PDF file into the upload zone or select it from your device.
- Choose Type: Select whether you want to add a text-based watermark (like "DRAFT" or "CONFIDENTIAL") or upload a company logo image.
- Customize Appearance: Use the intuitive sliders to adjust the size, rotation angle, and opacity to ensure it looks professional and doesn't obscure the main text.
- Apply and Download: Hit "Apply Watermark" to stamp every page in the document, then download your secured PDF.
Why Use PDFWhiz's Watermark Tool?
In a digital world where files can be copied and forwarded with a single click, protecting the provenance and status of your documents is essential. Whether you are sending a preliminary design draft to a client, sharing confidential financial projections internally, or protecting copyrighted creative writing, a watermark is your first line of defense. It clearly communicates the document's status or ownership without preventing legitimate readers from accessing the content.
Our comprehensive watermarking tool gives you complete control over how that stamp appears. You can opt for a bold, diagonal "CONFIDENTIAL" splashed across the center of the page at low opacity, or place a subtle, fully opaque corporate logo in the bottom corner of every page. The real-time adjustment sliders for rotation, size, and transparency allow you to dial in the exact look you need to match your professional standards, ensuring the watermark serves its purpose without sacrificing document readability.
Best of all, applying watermarks with PDFWhiz is inherently secure. Because the stamping process utilizes modern browser technologies (specifically the pdf-lib library), your files are processed locally on your own computer or mobile device. We never upload your sensitive unwatermarked originals to a remote server, eliminating the risk of data interception or unauthorized retention. It's fast, private, and powerful document security.
Frequently Asked Questions
Yes, absolutely. By selecting the "Image Watermark" radio button, you can upload any standard JPG or PNG image file (such as a company logo) to be used as the stamp across your document.
Yes, the opacity slider allows you to make the watermark semi-transparent (from 10% to 100% solid). This is crucial so that the underlying text of your document remains fully legible.
Yes, the position dropdown offers multiple placement options including dead center, or neatly tucked into any of the four corners (Top Left, Top Right, Bottom Left, Bottom Right).
Yes, when you apply the watermark, it is automatically stamped onto every single page of the PDF document in the exact same position, saving you massive amounts of time.