Add text watermarks onto PDF pages with custom position.
How to Use PDF Watermark Adder
Upload your PDF.
Type your watermark text and adjust its opacity, size, rotation angle, and color.
Click "Apply Watermark" and download the stamped PDF.
Key Features & Practical Use Cases
Stamping "CONFIDENTIAL" or "DRAFT" diagonally across document pages before internal circulation.
Overlaying company brand names on whitepapers to protect intellectual property rights.
Adding copyright text to portfolio pages to prevent unauthorized printing or copying.
Frequently Asked Questions
Can I control how transparent the watermark is?
Yes, an opacity slider lets you make it subtle (light background stamp) or bold and clearly visible.
Does the watermark get applied to every page automatically?
Yes - the same watermark is stamped consistently across all pages of the document in one pass.
Can I remove a watermark I've already applied?
Once flattened into the PDF, a watermark becomes part of the page content and can't be automatically stripped back out - keep your original unwatermarked file if you might need it later.
About OneClickly
OneClickly offers 100+ premium online tools for PDF operations, image compression and conversion, text utilities, calculators, and developer tools. All tools run 100% in your browser - no file uploads, no data collection, maximum privacy guaranteed.
Related Pdf Tools
PDF Merger - Combine multiple PDF files into a single document in your desired order.
PDF Compressor - Reduce the file size of your PDFs while maintaining quality.
PDF to JPG - Extract pages from a PDF and convert them into separate JPG images.
Image to PDF - Convert images (JPG, PNG) into a high-quality PDF document.