How to mark a PDF as CONFIDENTIAL or DRAFT on every page

To mark a PDF as CONFIDENTIAL or DRAFT on every page, open our free Add Watermark to PDF tool, choose your file and click Add watermark & download. The tool already starts with a confidential watermark PDF readers know at a glance: CONFIDENTIAL in red, bold, at 45° and 30% opacity in the centre of every page. Change the word to DRAFT or anything else if you need to. It all happens in your browser, so the document is never uploaded.

Below are the steps, settings that look professional, how to mark only some pages and what such a label can and cannot do.

CONFIDENTIAL, DRAFT or something else?

Pick the word that tells the reader what to do with the document.

Label	Use it for
CONFIDENTIAL	Salary sheets, contracts, HR letters, client data
DRAFT	Proposals, reports or agreements still being edited
DRAFT v2, 5 Nov 2026	Drafts that go back and forth, so nobody signs an old one
INTERNAL USE ONLY	Policies and price lists for staff
SAMPLE or SPECIMEN	Forms, certificates or designs shown as examples
COPY	A second copy, so it isn't mistaken for the original

Keep the text short. One or two words read best when the line runs diagonally across the page. The tool takes up to 200 characters on a single line.

How to make a confidential watermark PDF, step by step

1. Open Add Watermark to PDF and choose or drop your PDF. If it is password-protected, type the password when asked.
2. Leave Watermark type on Text. The box already says CONFIDENTIAL; type DRAFT or your own label instead if needed.
3. Choose a font: Helvetica Bold (the default), Helvetica, Times Bold, Times or Courier.
4. Adjust font size, colour, opacity and rotation if you like (see the table below).
5. Pick a position: Centre, Tiled (repeat across page) or one of six spots along the top or bottom edge.
6. Under Pages, keep All pages, or choose Selected pages.
7. Check the live preview. Use the arrows to look at other pages.
8. Click Add watermark & download. The new file is saved with "-watermarked" added to its name.

Your original PDF is not changed, so keep it as the clean master copy.

Settings that look professional

The defaults are a good start. These variations suit common jobs:

Look	Size	Colour	Opacity	Rotation	Position
Classic CONFIDENTIAL	60 pt	Red	25–30%	45°	Centre
Quiet DRAFT	80–100 pt	Grey	10–15%	45°	Centre
Hard to crop out	24–36 pt	Grey or red	15–20%	30–45°	Tiled
Header label	14–18 pt	Red	80–100%	0°	Top centre

A few rules of thumb:

• Lower opacity on text-heavy pages. At 15–25% the words underneath stay easy to read.
• Use tiled for scans and photos. One centred word can be cropped off; a pattern across the whole page cannot.
• Use 0° for a header or footer label. Corner and edge positions keep a small gap from the page edge.
• Long text needs a smaller size. If the preview shows words running off the page, lower the font size.

The five fonts cover English letters and common symbols. If you type text in another script, such as Bangla, it is drawn as a picture using your device's fonts, so check the preview.

Marking only some pages

Sometimes only part of a file is sensitive, such as the salary annex at the back of a contract. Choose Selected pages and type the page numbers, for example 1-3, 7 or 12-15. Pages outside the list are left exactly as they were, and the preview tells you when the page you are looking at isn't included.

Need two different labels in one file, such as DRAFT on the body and CONFIDENTIAL on the annex? Run the tool twice: first on the full file with one label and page range, then on the downloaded copy with the other.

Adding the watermark while you edit

If you are already working on the file in PDF Studio, you don't need a separate step. Its Protect tab (in Advanced) can add the same text watermark when you save, together with a password and page numbers, so you get one finished file.

What a CONFIDENTIAL label does not do

A watermark tells honest readers how to treat a document. It does not stop anyone from opening, copying or forwarding it.

• Need to keep people out? Add a password with Protect PDF. It uses AES-256 encryption, and the file cannot be opened without the password. Send the password separately, not in the same email.
• Need to remove names or numbers? Use Redact in PDF Studio. Redacted text is deleted from the file, while Whiteout only covers it.
• Was your original password-protected? The watermarked copy has no password, so add one again with Protect PDF.

A watermark also becomes part of the page content, but PDF editing software can still remove it. Treat it as a clear label, not as proof that the file was never changed.

Common problems and fixes

• The word runs off the page: lower the font size or rotation.
• The watermark hides the text: lower the opacity to 15–20% or choose grey.
• It covers a signature or stamp: move it to Tiled at a small size, or to a top or bottom position.
• The file got bigger: text watermarks add very little. If a portal still says the file is too big, run it through Compress PDF.

Marking scanned ID copies rather than office documents? See how to watermark NID and certificate copies. For your company logo instead of a word, see how to add your logo as a watermark.

Quick checklist

• Right label: CONFIDENTIAL, DRAFT, INTERNAL USE ONLY or a dated draft
• Readable underneath: opacity 15–30%
• Every page that needs it, checked in the preview
• Original kept unmarked as the master copy
• Password added if the content really is confidential
• Private details redacted, not just covered