Add text or image watermarks to your PDF
Upload a PDF, choose a text or image watermark, customize its appearance, and download the updated document from your private Kukureku workspace.
Private
Files stay on your device
Fast
Built for quick results
Browser-based
No software installation
Simple
Upload, process, download
Select one PDF
Choose or drag the PDF you want to watermark.
Supported format: PDF ยท Maximum file size: 25 MB
You can also press Enter or Space to browse files.
Helpful tips
Get the best result
Keep the watermark readable
Use moderate opacity and a suitable size so the document remains easy to read.
Use PNG for transparent logos
A PNG image with a transparent background usually produces the cleanest logo watermark.
Review the final document
Open the downloaded PDF and confirm that the watermark position is suitable on every page.
Frequently asked
Common questions
Is the watermark added to every page?+
Yes. Kukureku applies the selected text or image watermark to every page of the uploaded PDF.
Which watermark image formats are supported?+
The current version supports PNG, JPG, and JPEG images.
Is my PDF uploaded?+
No. The PDF and watermark image are processed locally inside your browser.
Keep working
Need another PDF tool?
Continue with another document task from the Kukureku PDF workspace.