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Add Stamp to PDF Page Online Free

Add a large diagonal stamp text (like CONFIDENTIAL, DRAFT, or APPROVED) to every page of a PDF. Free, private, runs entirely in your browser.

Click to select a PDF file, or drag and drop

Your file never leaves your browser
Choose a preset stamp or enter custom text:
CONFIDENTIAL
DRAFT
APPROVED
REJECTED
COPY
FINAL
NOT FOR DISTRIBUTION

Opacity: 25%


How to Add a Stamp to a PDF

  • Upload the PDF you want to stamp.
  • Choose a preset stamp like CONFIDENTIAL or DRAFT, or enter your own text.
  • Pick a color, size, and opacity, then click Stamp All Pages to download.

Example

An architect marks a 30-page building plan as "APPROVED" in large green diagonal text at 20% opacity. Every page gets the stamp, making the approval status immediately clear when the document is printed or viewed.

Common Use Cases

  • Marking documents as DRAFT, CONFIDENTIAL, or APPROVED before circulation.
  • Adding a large diagonal stamp to internal reports to indicate their status.
  • Branding shared PDFs with a company name or review status across all pages.

FAQ

  • How is this different from a watermark? A stamp is typically larger, more opaque, and placed diagonally across the page center — it's designed to be highly visible rather than subtle.
  • Can I use a different stamp on different pages? Not yet — the same stamp text is applied to every page in the current version.
  • Is my file uploaded anywhere? No — stamping happens entirely in your browser.