Add a custom text watermark to every page of a PDF document in your browser. Set the text, opacity, angle, font size, and colour, then download the watermarked file.
Open Add Watermark to PDF → free, no sign-inSending a draft document that shouldn't be mistaken for the final version? Distributing a report that carries your brand? The Add Watermark to PDF tool lets you stamp a custom text watermark across every page of a PDF: set the text, choose the opacity, angle, font size, and colour, and download the watermarked version instantly — all in the browser, nothing uploaded anywhere.
Protecting draft documents from being distributed as finals, branding reports for clients, marking confidential documents — any situation where you need a consistent, visible watermark across every page of a PDF without installing software.
No tutorials. No learning curve. Open it and get started.
No server uploads. Diagonal watermarks at any angle are supported — the most common and hardest to crop out.
Completely free. No trial period. No premium tier for basic functionality. No account required. Use it as often as you need.
One job, done well. Add Watermark to PDF was built to solve a specific problem cleanly. No feature bloat, no ads, no distractions.
Is the watermark on every page?
Yes — the watermark is applied consistently to every page.
Can I remove the watermark later?
Text watermarks baked into a PDF can be difficult to fully remove — treat the original as your master copy.
What angle works best?
A diagonal watermark (45°) is the most common choice as it covers the page effectively.
Is my PDF uploaded anywhere?
No — it processes entirely in your browser.
Can I use any colour?
Yes — any colour from the colour picker.
Free. Instant. No sign-in. Open it and get the job done.
Open Add Watermark to PDF on Doathingy.com →