Watermark PDF Files
Easily add custom text or image watermarks to your PDF files securely in your browser.
Select PDF files
or drop PDFs anywhere in this area
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Let’s See How it WorksWatermark PDF
What can we
help you find?
Yes! online PDF Watermark PDF tool is completely free to use. There are no hidden fees, subscriptions, or software installations required to protect your digital documents.
Yes, Watermark PDF Tool offers full customization. You can easily adjust the text size, rotation angle, placement, and opacity (transparency) to ensure the watermark perfectly fits your document without obscuring important information.
Absolutely. Watermark PDF Tool allows you to choose between adding a custom text overlay or uploading an image file (such as a JPG or PNG logo) to serve as your document watermark.
Yes! Because Watermark PDF tool is completely browser-based, it works seamlessly across all operating systems—including Windows, Mac, Linux—as well as on mobile devices and tablets.
Upload failures typically occur if your PDF is corrupted, excessively large, or password-protected. Ensure your PDF is unlocked and within standard file size limits before attempting to add a watermark.
If your logo or image isn’t uploading, please ensure it is in a supported format like JPG or PNG. Additionally, check that the image file size isn’t excessively large, as this can cause browser timeout issues.
To ensure the security of your intellectual property, watermarks applied via ProPDFWorks are flattened and embedded into the document. Therefore, they cannot be easily removed once downloaded. Always keep a copy of your original, unwatermarked file!
Our tool preserves the original quality of your uploads. If your image watermark appears pixelated or blurry, it is likely because the original JPG or PNG file you uploaded has a very low resolution. Try uploading a higher-quality image file for crisp results.