Free browser-based tool
Add Text Watermark to PDF Online
Add a simple text watermark to each page of a PDF. This is a visual label, not encryption or access control.
Open Add PDF Watermark →Home / Add PDF Watermark
How to use Add PDF Watermark
- Choose a PDF.
- Enter watermark text and size.
- Download and inspect the watermarked copy.
Download the result and open it once to verify the output before sharing.
Privacy and file handling
A visible watermark does not prevent copying or remove underlying text. Do not use it as a security feature. This client-side tool processes the selected file in your browser. Avoid public devices for sensitive documents.
Practical guide
Add a Watermark to PDF: complete guide
A watermark labels a document as Draft, Confidential, Sample or a branded copy. It can communicate status without making the page difficult to read.
When should you use this tool?
Watermarks are useful for review copies, internal reports and training materials. They are not a substitute for access controls or encryption.
How to use it
Select a PDF, configure the watermark using the available controls, process the file and download it. Check pages with light and dark content.
Tips for better results
Use readable text and restrained opacity. A visible watermark does not prevent copying or guarantee confidentiality.
Frequently asked questions
Does a watermark stop copying? No, it is a visual label. Can I watermark every page? Check the available options and verify the output.
Keep your original and check the final output before sharing. Explore the Doc Writer Lab homepage or browse the PDF guides library.
More PDF tools
Visit the Doc Writer Lab homepage to use the other free PDF, text, and calculator tools.
Start now →