How to Add a Watermark to a PDF Online
Protect sensitive intellectual property by adding custom text or image watermarks to all pages.
Watermark PDF
Process your files in memory directly in your browser with zero data retention or watermarks.
Why Watermarking is Critical for Business Documents
A visible watermark serves as both a psychological deterrent and a legal marker. In the event of an unauthorized redistribution, a recipient cannot claim they were unaware that the document was an internal confidential draft.
For photographers, architects, and designers, watermarking sample proofs prevents prospective clients from utilizing high-resolution materials without paying the required licensing fees.
Text Stamps vs. Brand Logo Watermarks
Depending on your objective, choose between two primary types of watermarks:
1. Text Watermarks: Simple, bold status text such as 'CONFIDENTIAL', 'DRAFT', 'DO NOT COPY', or 'COPYRIGHT 2026'. These are rendered as vector text layers at adjustable angles.
2. Image Logo Watermarks: Upload a transparent PNG of your company emblem or seal to stamp consistent brand identity across every single page.
Use Transparent PNGs for Logos
When using an image logo watermark, always upload a PNG with an alpha transparent background. A JPG with a white rectangle background will obstruct the text underneath.
Step-by-Step: Adding a Watermark on JPGEASY
Applying a watermark takes less than a minute:
Upload your PDF file
Drag and drop your document into JPGEASY's Watermark PDF tool.
Choose Text or Image watermark
Type your custom text (e.g. 'CONFIDENTIAL') or upload a brand logo image.
Configure opacity and angle
Adjust transparency slider (e.g. 20%–30%) so underlying text remains readable, and set the angle (e.g. 45° diagonal).
Apply and download
Click 'Apply Watermark' and download your stamped PDF.
Mastering Opacity and Rotation Angle
The ideal opacity for a watermark is typically between 15% and 25%. This makes the stamp unmistakably noticeable without impairing the readability of the underlying contract terms. A 45-degree diagonal rotation provides the best coverage across the page.
Frequently Asked Questions
Frequently Asked Questions
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