Home › PDF stamps › CONFIDENTIAL
How to Stamp a PDF as CONFIDENTIAL
Quick answer: open Stamp My PDFs with the CONFIDENTIAL stamp preselected, drop in your PDF, drag the stamp into place and download. It's free to try, and the file never leaves your device.
Stamp my PDF as CONFIDENTIAL →
No account. Works in your browser, or offline with the desktop app.
A CONFIDENTIAL marking tells recipients the document isn't for wider circulation. It's often expected under NDAs, in HR files, and in board and investor materials.
Why "no upload" matters here
If a document is confidential, you shouldn't be uploading it to a random online PDF tool. Stamp My PDFs processes the file in your browser. The PDF never leaves your device, and the desktop app works fully offline.
Getting the marking right
- Every page. Choose Stamp all pages. A confidential label only on page 1 is lost the moment someone prints page 4.
- Lower opacity. Around 25–40% keeps the content readable as a watermark.
- Consistent wording. If your NDA defines the term (for example "Confidential Information"), match it. Use a custom stamp if you need different wording.
- Add a recipient or reference. Putting the recipient name in the reference field discourages forwarding.
A stamp is a label, not encryption. For truly sensitive files, combine it with password protection or controlled sharing.