Add Watermark to PDF Online for Free
Add Watermark to PDF – Free Online, Text or Image
Watermarks help you mark documents as drafts, confidential, or branded with your logo. This tool adds a text or image watermark to every page of your PDF. You control the position, size, transparency, and rotation. Upload your PDF, customize the watermark, and download.
How it works
Upload the PDF
Choose the document that needs a draft, confidential, sample, or branded mark.
Set watermark text or image
Choose wording, placement, rotation, size, and opacity so the mark is clear without blocking important content.
Download the watermarked PDF
Export the file and review pages with dense text, tables, signatures, or barcodes.
Frequently asked questions
About Add Watermark
Add Watermark places text or a visual mark on PDF pages. It is useful for draft copies, confidential documents, sample invoices, internal reports, client proofs, training material, and files that should not be mistaken for the final version. A good watermark is visible but not annoying. Use light opacity for long documents, larger diagonal text for draft pages, and corner placement for logos or document labels. Avoid covering totals, signatures, QR codes, barcodes, and small legal text. Watermarks discourage casual reuse, but they are not the same as encryption or legal redaction. If the document is private, protect it with a password. If information must be permanently hidden, use a redaction workflow.
Updated June 2026: Added guidance for draft stamps, confidential labels, page placement, opacity, repeated watermarks, and avoiding unreadable documents.