Mark PDF ownership
Add a visible label for drafts, internal files, or copyright.
Add Watermark to PDF
Add a watermark to your PDF online for free
Add text watermarks to PDF files for copyright protection, source labeling, or internal document marking.
Single PDF fileText watermarkImage watermarkPreview before downloadBrowser-based processing
Choose PDF File
Drop PDF file here
or
PDF file supported
Your file is processed locally in the browser and never uploaded to a server.
Mark ownership
Label drafts, internal files, or copyright notes.
Flexible settings
Adjust watermark position and appearance.
Clear sharing context
Share reviewed PDFs with visible status or ownership labels.
How to Use PDF Tool
1、Upload PDF
Choose the PDF to watermark.
2、Set watermark
Enter text and adjust the style.
3、Download PDF
Save the watermarked PDF.
Why Use PDF Tool
Mark document status
Add draft, sample, or internal labels.
Discourage misuse
Show file ownership or intended use.
Share files clearly
Add visible context before sending PDFs.
Keep the original file
Create a new PDF without overwriting the source.
Use Cases
Draft contracts
Add draft or review watermarks.
Internal files
Mark documents for internal use.
Copyright notes
Add ownership or source labels.
File sharing
Add usage notes before sending.
Tips
- Keep watermark text short and clear.
- Avoid opacity that blocks reading.
- Preview important files before use.
- Keep the original PDF for backup.
Processing is completed locally, and files are not uploaded to the server
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Frequently Asked Questions FAQ
Adding a PDF watermark means placing text or a mark on PDF pages to show status, ownership, copyright, or usage notes. It is useful for drafts, internal files, samples, contracts, and shared documents.
Upload the PDF, enter the watermark text, adjust style or position if available, and process the file. Before using the result, preview the pages to make sure the watermark does not block important content.
No. The tool creates a new watermarked PDF and keeps the original file unchanged on your device. Keeping the original is useful if you need to change the watermark or create a clean copy later.
FastToolAI adds PDF watermarks locally in your browser and does not upload the file to the server. For contracts, proposals, or internal materials, review the downloaded PDF before sharing it.
PDF watermarks are useful for marking drafts, samples, internal documents, copyright notices, company names, or file purpose. They help readers understand the document status and support safer sharing.
Yes. A watermarked PDF can be downloaded, viewed, and printed. Before printing, preview the file to confirm the watermark position, opacity, and page content are clear enough for your needs.