Protect your PDF documents by stamping custom text or logo watermarks across every page.
password-protect PDFSharing draft contracts, financial reports, or creative work without copyright protection leaves your intellectual property vulnerable to unauthorized distribution. Our free online PDF watermark tool lets you stamp custom text like "CONFIDENTIAL", "DRAFT", or upload your company logo watermark across all pages.
Select the file you want to watermark.
Choose text or image logo, opacity, and rotation.
Save your protected document instantly.
Add custom text strings or PNG logo stamps.
Adjust watermark transparency, angle, and grid position.
Protect unlimited documents without subscriptions.
Applies watermark seamlessly across every page.
Stamp "DRAFT FOR REVIEW" on unfinalized legal agreements.
Add company logo watermarks to photography portfolios.
Mark sensitive financial reports as "STRICTLY CONFIDENTIAL".
Document protection guidance
Our tool flattens the watermark into document layers to prevent basic editing removal.