PDF Watermark Adder
Add a custom text watermark to every page of one or more PDF files at once.
About this tool
Add a custom text watermark to every page of one or more PDF files at once. It runs entirely in your browser using open-source PDF libraries, so your document is processed on your own device and never uploaded to a server. That makes it a fast, private option any time you need to add a text watermark across every page. Bulk supported.
How to use it
- Upload one or more PDFs.
- Type your watermark text and adjust its look.
- Download watermarked copies of every file.
Tips
- A diagonal, semi-transparent watermark is usually the least distracting for readers.
- Use the bulk option to stamp the same watermark across a whole batch of documents.
FAQ
Can I control the watermark's opacity?
Yes, opacity is adjustable so the watermark stays visible without overwhelming the page.