How to Add a Watermark to a PDF: Confidential, Draft or Your Name

A watermark is faint text across the page that tells readers something about the document: that it is a draft, that it is confidential, or who it belongs to. Businesses use it to brand price lists, students to mark drafts of a thesis, and individuals to label a copy of an ID "for admission use only" so that it cannot be misused elsewhere.

The free Add Watermark tool stamps any text on every page of your PDF, in Bangla or English.

Quick answer

Open Add Watermark, upload your PDF, type the text, choose colour, size and opacity, pick diagonal or straight and one large mark or a tiled pattern, then download. The mark is applied to every page.

Common watermark uses

• "Draft" or "For review" on unfinished documents so nobody treats them as final.
• "Confidential" on private reports and contracts.
• A business or website name on price lists, brochures and samples.
• "Copy" or "For admission use only" on photocopies of identity documents, which makes misuse harder.
• A date or recipient's name, so you can tell which copy leaked.

How to add a watermark, step by step

1. Open the Add Watermark tool.
2. Upload your PDF.
3. Type the watermark text. Bangla and English both work, including conjunct letters.
4. Set the colour, opacity and size.
5. Choose the layout: diagonal or straight, and one large mark or a tiled pattern.
6. Press the button and download the watermarked PDF.

Choosing settings that work

• Opacity. Light grey at 20 to 30 percent opacity leaves the page readable while still visible. Heavy marks make text hard to read.
• Diagonal placement is the classic look and is hard to crop out.
• Tiled patterns are harder to remove or crop than one central mark, and are good for sensitive copies.
• Size. The mark should span the page but not hide the key content.
• Colour. Use a colour that contrasts gently with the page, such as grey or a soft red.

A watermark is not a lock

It is useful to be realistic. A watermark labels a document and discourages misuse, but it does not prevent copying. The mark becomes part of the page, so it is not easy to remove, but someone with enough effort could still do it. For real access control combine it with a password using Protect PDF, or remove sensitive pages entirely with Remove Pages.

Keep your original

Because the watermark is built into the page, you cannot take it off again from the new file. Always keep your clean original, and save the watermarked version under a new name such as agreement-draft-watermarked.pdf.

Related steps

• Combine documents first with Merge PDF, then watermark the whole bundle.
• Sign a document with Sign PDF before adding a "Copy" mark for distribution.
• Keep the file small with Compress PDF.

Privacy

The PDF is used only to add the mark. The original is deleted after processing and the result is removed automatically shortly afterwards. No account is needed and files are not stored in a database. See the privacy policy.

Choosing the right watermark text

The wording decides what the watermark communicates:

• "DRAFT" tells the reader that the document is not final.
• "CONFIDENTIAL" signals sensitivity and discourages forwarding.
• "COPY" distinguishes a duplicate from an original.
• "FOR ADMISSION USE ONLY - 10 OCT 2026" limits what a copied ID can be used for.
• A company name or website brands documents such as brochures and price lists.
• The recipient's name lets you trace a leak back to a copy.

Be specific. A watermark that names a purpose and a date is much harder to misuse than a plain word.

Settings that give a professional look

• Diagonal at about 45 degrees is classic and easy to read.
• Light grey or soft red keeps the text readable beneath it.
• Opacity 20 to 35 percent is a good range. Too strong hides content, too weak is ignored.
• Large size so the mark spans the page.
• Tiled pattern for documents that you hand to people you do not know.

Watermarks in daily work

• Students: mark a draft thesis "DRAFT - not for submission" before sharing with a supervisor.
• Freelancers: put "PREVIEW" on mock-ups until payment arrives.
• Landlords and tenants: stamp copies of ID with "For rental agreement only".
• Teachers: label shared papers with the school name.
• Small shops: add the shop name to price lists shared on social media.

Limits of watermarking

A watermark is a deterrent, not a lock. Combine it with other steps for sensitive material: share only the necessary pages with Remove Pages, add a password with Protect PDF and send only to the intended person.

Quick checklist for watermarking

1. Keep your original file.
2. Choose clear, specific wording.
3. Set opacity so that the text remains readable.
4. Check the first, middle and last pages.
5. Name the file so that it is obvious it is a marked copy.

A worked example: sharing a draft contract

A small agency sends a draft service contract to a client. The owner adds a diagonal grey watermark reading "DRAFT - not valid until signed" to every page. The client can read and comment on the terms, but nobody can mistake the file for a signed agreement. After negotiation, the final version without the watermark is signed. A month later, an old draft circulates in the client's office, and because of the watermark it is immediately clear that it is not the final version, which avoids a dispute.

Other uses

• Course materials: "Copy for enrolled students" on sample chapters.
• Quotations: "Valid for 14 days" across the page.
• Photocopies of ID: the purpose and date, to discourage reuse.
• Internal documents: "Internal use only".

Frequently asked questions

Does it support Bangla text? Yes, including conjunct letters.

Can I remove the watermark later? Not easily. It becomes part of the page, so keep your original file.

Can I put the mark on only some pages? The tool stamps every page. Use Extract Pages first if you need a shorter document.

Will it make the file bigger? Slightly, not noticeably for most documents.

Is it free? Yes.

Can I watermark only some pages? The tool stamps every page. Extract the pages you want first with Extract Pages.

Does the watermark increase file size? Only slightly.

Can I use an image or logo as a watermark? Use Add Image or Logo to PDF for pictures; this tool adds text.

Can I remove a watermark later? Not easily. Keep the original and create marked copies when needed.

Does the watermark work on scanned PDFs? Yes. It is placed on top of every page regardless of the content.

Next step

Open Add Watermark below and label your document the way you want it read.