Add Watermark
Protect your PDF documents by adding custom text or image watermarks. All processing is done securely in your browser, ensuring your data remains private.
Drag & drop your PDF here
or
Live Preview
Select a PDF to see a preview
Privacy Guaranteed
Your PDF files are processed entirely within your browser. No data is uploaded to any server, ensuring complete privacy and security during the watermark addition process.
How to Add Watermarks to a PDF
1. Select Your PDF
Click 'Select PDF File' or drag and drop your document. A live preview of your PDF pages will appear.
2. Customize Watermark
Choose between a text or image watermark. Adjust its content, position, rotation, size, color, and opacity using the intuitive controls. See changes in real-time.
3. Apply & Save
Once satisfied with the preview, click 'Add Watermark & Save PDF'. The tool will apply your watermark to every page and save the new PDF to your device.
Frequently Asked Questions about Adding Watermarks to PDFs
Is it safe to add watermarks to confidential PDFs?
Absolutely. DumPDF processes your PDF files entirely within your web browser. Your documents are never uploaded to any server, ensuring complete privacy and security for your sensitive information.
Can I use both text and image watermarks?
Our tool allows you to choose either a text watermark or an image watermark at one time. You can customize each type extensively to fit your needs.
What customization options are available for text watermarks?
For text watermarks, you can set the text content, rotation angle, font size, font type, text color, and opacity. You can also precisely position it with horizontal and vertical margins.
What customization options are available for image watermarks?
For image watermarks, you can upload your own image (JPG, PNG, WebP), adjust its rotation, opacity, and scale. You can also position it precisely with horizontal and vertical margins.
Does adding a watermark affect the original PDF quality?
No, adding a watermark is an overlay operation. It does not re-compress or alter the existing content of your PDF. The quality of your original text and images will remain exactly the same.
Is this PDF watermark tool free to use?
Yes, DumPDF's "Add Watermark to PDF" tool is completely free. There are no hidden costs, subscriptions, or usage limits. Enjoy secure and private PDF watermarking without any charges.