What is the Watermark PDF?
A watermark is text stamped across PDF pages to communicate status or ownership — DRAFT on an unfinished proposal, CONFIDENTIAL on a sensitive report, a company name on shared designs, or a copyright notice on a portfolio. It is the simplest way to control how a document is perceived and to discourage casual copying once the file leaves your hands.
This tool adds a fully customizable text watermark to every page of your PDF. You control the wording, font size, colour, opacity, rotation and position: a bold diagonal stamp across the center for maximum visibility, or a subtle centered mark that identifies the document without obscuring the content. A tiled mode repeats the text across the whole page, which is ideal for protecting design work and photography portfolios.
Opacity is what separates a professional watermark from an annoying one. At 15–25% the mark is clearly visible yet the underlying text stays perfectly readable; push it higher only when deterrence matters more than readability. The live preview renders the first watermarked page so you can judge the balance before distributing the file.
As with every BConvert tool, watermarking runs entirely in your browser. Your document is never uploaded, nothing is added to it besides your watermark, and there is no account or payment involved. Mark contracts, reports, invoices and creative work in seconds, then share them with confidence.
A watermark is a deterrent and a label, not a security lock — and it is worth being honest about that. Anyone with a full PDF editor can remove a watermark layer, so if a document must be genuinely protected, combine watermarking with access restrictions rather than relying on the stamp alone. That said, for the vast majority of everyday uses — marking drafts, asserting copyright on portfolios, flagging confidential reports — a watermark does exactly what is needed: it makes the document's status unmistakable at a glance and raises the effort required to misuse it. Paired with a password on truly sensitive files, a CONFIDENTIAL watermark is a professional, lightweight layer of document control that costs nothing to add. Choosing watermark text is worth a moment of thought. Single words — DRAFT, CONFIDENTIAL, SAMPLE, APPROVED — read instantly and look professional at any size. Longer phrases like company names work well in tiled mode at smaller sizes, where repetition across the page creates the protective effect. Avoid red for casual drafts if your pages already use red for emphasis; a medium grey at low opacity is the most versatile choice. Whatever you pick, the preview shows the first page so you can iterate in seconds until it looks right.
How to use it
- Drop your PDF onto the tool — Drag and drop or click to choose the file. It is processed locally — nothing is uploaded.
- Type your watermark text — Enter any text — DRAFT, CONFIDENTIAL, your company name, a copyright notice.
- Style the watermark — Set font size, colour, opacity (5–80%), rotation and position: centered or tiled across the page.
- Add the watermark — Click Add watermark. The text is drawn onto every page of the PDF.
- Preview and download — A preview of the first watermarked page appears so you can check the look. The file downloads automatically.
Common use cases
- Stamping DRAFT on proposals and contracts under review
- Marking financial reports and HR documents as CONFIDENTIAL
- Adding a company name or copyright notice to shared design files
- Tiling a watermark across photography portfolios to deter theft
- Labeling sample invoices or quotes before sending to prospects
Tips
- Keep opacity at 15–25% for a professional look that doesn't hide content
- Diagonal (45°) watermarks are harder to crop out than horizontal ones
- Use the tiled position for maximum protection on creative work
- Short text like DRAFT or CONFIDENTIAL reads better than long sentences
- Pick a colour with good contrast against your pages — dark red or grey work well
- Check the preview before sharing; re-run with different settings if it's too faint or too bold
Frequently asked questions
How do I add a watermark to a PDF for free?
Drop your PDF on the tool, type your watermark text, adjust size, colour, opacity and rotation, then click Add watermark. The watermarked file downloads immediately with no signup.
Can I add a DRAFT watermark to a PDF?
Yes — type DRAFT as the watermark text, choose a diagonal 45° rotation and 20–25% opacity for the classic draft-document look.
Will the watermark cover my document's text?
Not at normal settings. At 15–25% opacity the watermark sits visibly over the page while all underlying text stays readable. Use the preview to confirm.
Is my PDF uploaded when I add a watermark?
No. Watermarking runs 100% in your browser — your file never leaves your device.
Can I add a CONFIDENTIAL watermark to my PDF?
Yes — type any text like CONFIDENTIAL or DRAFT, position it, and apply it to all pages at once.
Can I watermark a PDF without Adobe Acrobat?
Yes. Add text watermarks free in your browser — no Adobe, no signup, and no watermarking limits.
Can I add a CONFIDENTIAL watermark to my PDF?
Yes — type any text like CONFIDENTIAL or DRAFT, position it, and apply it to all pages at once.
Can I watermark a PDF without Adobe Acrobat?
Yes. Add text watermarks free in your browser — no Adobe, no signup, and no watermarking limits.