Watermark a PDF Free
Watermark a PDF free — genuinely free. No credit card, no trial countdown, no watermark on your output. Add custom text watermarks to PDF files.
Most “free” PDF tools aren't really free — they cap file sizes, count your jobs, or stamp a watermark on the result. This one has none of those limits: watermark up to 20 PDFs per job, as often as you like, with clean output every time.
The tool is funded entirely by optional premium plans for heavy users. For everyday watermarking, the free tier is all you need.
Why use this merger
Truly free
No credit card, no trial clock, no hidden charges. Process as many documents as you need.
No watermarks
Your output is clean. We never stamp a brand or promotional watermark onto your files.
No file-size tricks
Works with real-world documents, not just tiny test files.
No account walls
Free watermarking without registration. Upload, watermark, download, and close the tab.
How to watermark a pdf free
- 1
Upload your PDF
Select the PDF you want to watermark.
- 2
Set your watermark
Enter the text, then choose opacity, angle, and placement.
- 3
Watermark and download
Run the tool and download the watermarked PDF.