Protect your documents and photos by adding custom text or image watermarks easily. Secure, fast, and free online watermark generator.
Upload PDF or Image
Supported formats: PDF, JPG, PNG, WEBP.
Settings
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Frequently Asked Questions (FAQ)
Are my PDF or image files uploaded to a server?
Absolutely not. Our Watermark generator processes everything directly in your browser using JavaScript (powered by pdf-lib and canvas). Your files remain 100% secure on your device.
Can I add an image logo as a watermark?
Yes! You can choose "Image" as the watermark type and upload a PNG (supports transparent backgrounds) or JPG logo. You can adjust its opacity, scale, rotation, and layout (centered or tiled across the page).
Is there a limit on the number of PDF pages?
Technically, there is no limit. However, since the processing relies on your browser's memory, very large PDF files (hundreds of pages) might take a few seconds to process and consume some RAM.