Mark every page of a PDF as CONFIDENTIAL
Processed in your browser. Nothing is uploaded. Updated on 24 Oct 2026.Salary slips, offer letters, board papers and medical reports often have to be marked confidential before they are shared. This page is ready with a red CONFIDENTIAL stamp across the middle of each page; change the angle, the strength or the colour if your office prefers grey. Stamp every page or only a range, and nothing leaves your computer while you do it.
Press Select a PDF; the text is already CONFIDENTIAL in red.
Pick an Angle, such as Diagonal, and set Strength so the page stays readable.
Choose a Layout and check the stamp in the preview.
Press Add watermark and download the stamped PDF; it is drawn on your device.
Watermark PDF stamps text or an image across the pages of a PDF so every copy carries a mark. Type words such as DRAFT, CONFIDENTIAL or a person's name, or upload your logo as a PNG or JPG. Set how faint it is, turn it to the diagonal, level or upright, and choose one mark in the centre or a repeated pattern across the whole page. The preview is the real page as it will be saved.
Text watermarks come in grey, red or blue and use Helvetica Bold, one of the fonts every PDF reader has. It covers English and Western European letters; for other scripts, make an image and upload it. A centred watermark shrinks to fit a small page rather than being cut off. Image watermarks keep their own colours, and PNG transparency is kept.
Be clear about what a watermark does: it deters copying and marks ownership, but anyone with a PDF editor can remove a mark drawn on top. To stop people opening the file, use Protect PDF as well. Everything runs in your browser, so the document never leaves your device. Files up to 100 MB and 2,000 pages work, and a protected PDF asks for its password and is saved without it.
The rest of the article, and all 7 questions about Watermark PDF, are on the Watermark PDF page.
Add the PDF, type the watermark text or upload a logo, then set its strength, angle, colour and position. The preview shows the real first page with the watermark on it. Click Add watermark and download. Nothing is uploaded, so it works in seconds even for long documents.
Type CONFIDENTIAL, pick 45 degrees and red or grey, and keep it in the centre. A large centred word is shrunk automatically if the page is too small for it. Choose Tiled if you want the word repeated across the page so it cannot be cropped out.
Yes. Type the pages in the Pages box, for example 1-5 or 2, 4, 9-. Leave it empty to watermark every page. The preview shows the first page that will get the watermark.
PDF par watermark banaye: type words such as DRAFT or CONFIDENTIAL, or upload a PNG logo, then set the strength, angle, colour and position, or tile it across the page. A Pages box like 1-5 limits it. Files up to 100 MB and 2,000 pages work. A mark drawn on top can be removed by a PDF editor.
Still stuck? Ask about Watermark PDF and anybody who knows can answer. No account needed.
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In the collections PDF Tools · Privacy and Protection Tools.