PDF Watermark Tool
Add a text or image watermark to your PDF online for free.
Illustrative preview of your selected settings.
Your PDF is processed locally in your browser using this page's JavaScript library. A modern browser and an internet connection to load the library are required. Avoid using online tools for highly sensitive files unless you have assessed your security needs.
How to Add a Watermark to a PDF
Use this free PDF watermark tool to add text or a logo to your PDF documents. Watermarks can help identify document ownership, label drafts, or mark a document as confidential.
- Select a PDF from your device.
- Choose text watermark or logo/image watermark.
- Enter your text or choose a PNG/JPG logo.
- Customize position, color, size, opacity and rotation.
- Choose whether to watermark all pages or selected page groups.
- Click Add Watermark & Download to save a new PDF.
Why Use a PDF Watermark?
Watermarks can identify drafts, add a business name, label internal documents, or display a copyright notice. A watermark is a visual label, not encryption or copy protection. It cannot guarantee that a document will not be copied or altered.
Text and Logo Watermarks
Text watermarks are useful for labels such as DRAFT, SAMPLE and CONFIDENTIAL. Image watermarks let you place a company logo or another supported image over PDF pages. Check the output before sharing to ensure that the watermark does not hide important content.
Privacy and Compatibility
This tool uses browser-side PDF processing. The selected PDF is not intentionally sent to a file-processing server by this code, but the page loads its PDF library from a third-party CDN. Very large, encrypted or damaged PDFs may fail or require substantial device memory.
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Frequently Asked Questions
How do I add a watermark to a PDF for free?
Select a PDF, choose a text or image watermark, adjust the settings and click Add Watermark & Download.
Can I add my logo to a PDF?
Yes. Select Logo / image watermark and upload a PNG or JPG image from your device.
Can I change watermark transparency?
Yes. Use the opacity slider to adjust how transparent the watermark appears.
Can I watermark only selected pages?
You can apply the watermark to all pages, only the first page, odd-numbered pages or even-numbered pages.
Does a watermark protect my PDF from copying?
No. A watermark is a visual label and does not encrypt a PDF or prevent copying, screenshots or editing.
Is my PDF uploaded to a server?
This code processes the selected PDF locally in your browser. It does load the PDF library from a third-party CDN, so the page itself still requires an internet connection to load that library.
