Add image watermark to PDF
Overlay a PNG or JPEG watermark on selected PDF pages.
Local processing · Nothing is uploaded · 10 MB per file / 25 MB total
Input & settings
No files selected
Result
How to use
Choose the source files in the desired order, review settings, process, then inspect and download the result.
Limits and behavior
Choose the PDF first and watermark image second. Centered image preserves its aspect ratio. Local processing. Maximum 10 MB per file, 25 MB total and 100 PDF pages. Encrypted PDFs require the separate known-password decryption tool. Digitally signed input may lose signature validity after any modification; preserve your original. Unsupported or malformed files produce an error. Cancellation stops active PDF renders and discards stale results; a synchronous library step finishes before the browser can handle cancellation.
Place an image watermark over PDF pages
Add an image or logo to selected PDF pages as a visible watermark. This can help identify draft copies, branded handouts and review materials.
Can a watermark prevent a document from being copied?
No. Watermarks are visible markings, not copy protection or access control. Do not depend on them to safeguard confidential information.
Related tools: Text PDF watermark · PDF header and footer