Add Watermark to PDF Online Free – Text & Stamp Overlay

How to Use PDF Watermarking

Protect your drafts, confidential reports, and copyrighted materials by stamping custom text watermarks across your documents.

1

Drag and drop the document you want to stamp with a watermark.

2

Enter words like 'CONFIDENTIAL', 'DRAFT', or your company name, and adjust opacity and angle.

3

Click 'Apply Watermark'. The text overlay is rendered across all pages instantly on your device.

Can the watermark be easily removed by recipients?

FolderBit stamps the watermark directly into the PDF content stream, making it difficult to remove without professional PDF editing software.

Can I adjust the opacity so the text behind it is readable?

Yes. The watermark transparency is calibrated to ensure both the underlying document text and the security watermark are clearly legible.

Does watermarking add any third-party ads or logos?

No. FolderBit never inserts promotional branding or third-party watermarks onto your documents.