PDF → Stamped PDF

Stamp PDF — CONFIDENTIAL or DRAFT overlay

Stamping a PDF with CONFIDENTIAL or DRAFT is the fastest way to signal status without editing the source document. Krymp adds a diagonal overlay across every page — you control text, size, color, opacity and angle. Built locally with pdf-lib, so your file never leaves your device.

  • 100% in your browser
  • No uploads
  • Free · no queue
Open in KrympSee all tools

Quick facts

Presets
DRAFT, CONFIDENTIAL, COPY, custom text
Position
Diagonal across each page
Styling
Size, color, opacity, angle
Library
pdf-lib (WASM)
Privacy
100% local — nothing uploaded
Cost
Free — no account, no watermark

How it works

  1. 1

    Open Watermark tab

    CTA below.

  2. 2

    Drop PDF

    Or pick from device.

  3. 3

    Pick a stamp preset or custom text

    Adjust styling to taste.

  4. 4

    Download stamped PDF

    Saved locally.

FAQ

Can I stamp only one page?

Yes — pick a page range instead of "All".

Will the stamp be removable?

The stamp is added as a content layer — removing it requires editing the PDF.

Account?

Not required.

Privacy?

Local only — no upload.

Mobile?

Yes.

Open in Krymp

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