Mark a document as DRAFT, CONFIDENTIAL, or your own name across every page. Set the text, size, angle, and transparency, preview it live, and download — with nothing kept afterward.
How to watermark pdf
Add your PDFChoose the PDF you want to watermark.
Set the markType your text and adjust size, angle, and opacity — the preview updates as you tweak.
ApplyStamp the watermark across every page.
DownloadDownload the marked PDF. It's gone from our side the moment you do.
What you can do
- Mark drafts as DRAFT or NOT FINAL
- Stamp CONFIDENTIAL across a sensitive document
- Add your name or company to shared work
- Label COPY or SPECIMEN on duplicates
- Discourage reuse of a proof sent to a client
What happens to your file
Your files are never stored. Nothing is parked, queued, or kept — the moment your download is ready, it's gone, and no one ever sees it.
Plenty of online tools store your file on their servers and delete it later. PDF Cubby doesn't keep it at all — there's nothing left behind to clean up afterward.
Features
- Custom text with size, angle, and opacity control
- Live preview so it looks right before you commit
- Applied to every page in one pass
- 5 free a day — unlimited with Pro ($4.99/mo, cancel anytime)
- Never stored — nothing kept afterward
Tips
- Lower the opacity so the mark is visible but the text underneath still reads.
- A diagonal angle is hardest to crop out of a shared file.
- Want the mark permanent and un-editable? Flatten the file afterward.
Frequently asked questions
- Are my files kept after watermarking?
- No. Your PDF is never stored — the instant your marked file is ready, everything is gone and no one sees it.
- Can I control how the watermark looks?
- Yes — set the text, size, rotation angle, and transparency, and see it live on the page before applying.
- Does the watermark go on every page?
- Yes, it's applied consistently across the whole document in one pass.
- Can the watermark be removed later?
- A plain watermark sits on a layer; to make it much harder to strip, flatten the file afterward so it becomes part of the page image.
- Is there a page limit?
- No hard limit — long documents watermark fine.
- Do I need an account?
- You get 5 free uses a day with no account. For unlimited use, sign in and upgrade to Pro — $4.99/month, cancel anytime. The 6 core tools (merge, split, extract, rotate, compress, convert) are always free and unlimited.
- Is my original changed?
- Never — you download a new marked file and the source stays intact.