Free Online Watermarking
Add watermarks to PDF files without installing desktop software.
PDF Watermark
Add text or image watermarks to PDF files online with ConvertNova. Upload your PDF, customize the watermark's content, position, and opacity, and download a protected copy. No desktop software is required.
Upload your PDF files to begin adding a watermark.
How to Add a Watermark to a PDF
- Upload your PDF files. Select one or more PDF files from your device or drag them into the upload area.
- Choose your watermark. Add a text or image watermark, then set its position and opacity.
- Start the process. Click the Add Watermark button to apply it to your files.
- Download your PDF. After processing finishes, download the watermarked PDF file.
PDF Watermark Features
Text or Image Watermarks
Add a custom text watermark or upload your own image watermark.
Flexible Positioning
Place your watermark in the center or any corner of the page.
Adjustable Opacity
Control how prominent your watermark appears with an opacity slider.
Live Preview
See a preview of your watermark before applying it to your PDF.
Secure Handling
Uploaded files are processed for watermarking and automatically deleted afterward.
Supported Formats
ConvertNova supports the standard PDF document format for watermarking.
- .PDF — Portable Document Format.
- Image watermarks: .PNG, .JPG, or .JPEG files.
The maximum file size supported by this tool is 50 MB per file.
Privacy and Security
ConvertNova is designed to process your uploaded PDF for the requested watermarking operation.
- Files are transferred for the watermarking process.
- Files are processed for the requested watermark placement.
- Uploaded files are automatically deleted after processing, according to the service's file-processing policy.
- No desktop software installation is required.
For important or confidential documents, review the applicable ConvertNova privacy and file-processing information before uploading.
Frequently Asked Questions
Yes. ConvertNova allows you to add text or
image watermarks to PDF files online
completely free without registration.
Yes. ConvertNova lets you add custom text
or image watermarks to your PDF documents,
depending on the available options.
No. Watermarks are added while preserving
the original quality, formatting, and
readability of your PDF document.
Yes. Your uploaded PDF files are processed
securely and automatically deleted after
the watermarking process is completed.
No. ConvertNova works entirely in your web
browser, allowing you to add watermarks to
PDF files without installing any software.
Explore More Conversion Tools
Explore more PDF tools , security tools , document converters , and image converters on ConvertNova.