Tool 11 — Stamp
Watermark & Page Numbers
Add a text watermark or page numbers to every page of your PDF.
Step 1 — Upload PDF
Drop PDF here or click to browse
Single PDF file
Step 2 — Choose Mode
ℹ️ Uses the settings from both tabs above. Configure Watermark and Page Numbers tabs first, then come back here.
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How to Add a Watermark to PDF Online — Free, Browser-Based
Add a text watermark or automatic page numbers to every page of your PDF. LovelyPDF gives you full control — font size, opacity, color, position, and rotation. Applied using pdf-lib entirely in your browser. No file upload, no account, no limits.
Step-by-Step Guide
- Upload your PDF by clicking or dragging it into the tool
- Enter your watermark text — e.g. CONFIDENTIAL, DRAFT, your company name
- Adjust opacity, size, angle, and position
- Click Apply Watermark and download
Common Use Cases
- Marking draft documents as DRAFT before sharing for review
- Adding CONFIDENTIAL to sensitive business documents
- Stamping invoices or reports with your company name
- Adding page numbers to a document before submission
Frequently Asked Questions
Can I watermark only certain pages?
Currently the watermark applies to all pages. Split the PDF first, watermark those pages, then merge back.
Can I add an image watermark?
Currently only text watermarks are supported. Image watermarking is planned for a future update.
Will the watermark be editable by the recipient?
The watermark is embedded as a PDF content stream and cannot be easily removed without specialist software.
Related tools: Edit PDF · Header & Footer · Merge PDF