Can I customize the watermark appearance?

Yes. You can set the watermark text, font size, color, opacity, rotation angle, and position on the page.

Can I add watermark to pdf online free without uploading my file?

Add a custom text watermark to every page of your PDF. Choose font, size, opacity, color, and position. No upload. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to add watermark to pdf online free?

Use Watermark PDF. It is built for this workflow and keeps processing on-device in your browser.

Can I add a CONFIDENTIAL or DRAFT stamp to a PDF?

Yes. Type any watermark text including CONFIDENTIAL, DRAFT, APPROVED, or your company name. Adjust the opacity to make it subtle or bold.

Can I add confidential stamp to pdf without uploading my file?

Stamp your PDF with CONFIDENTIAL, DRAFT, APPROVED, or any custom text. Diagonal or horizontal placement with adjustable opacity. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to add confidential stamp to pdf?

Use Watermark PDF. It is built for this workflow and keeps processing on-device in your browser.

Can I use this tool to add page numbers to a PDF?

Yes. Use the watermark tool to add a page number stamp. For automated sequential numbering on each page, position and configure accordingly.

Can I add page numbers to pdf without uploading my file?

Stamp sequential page numbers onto your PDF. Position them at the footer, header, or any corner of every page. OnDevicePDF runs locally in your browser, so your file is not uploaded to a server.

Which tool should I use to add page numbers to pdf?

Use Watermark PDF. It is built for this workflow and keeps processing on-device in your browser.

Is Watermark PDF free to use?

Watermark PDF is free to use on OnDevicePDF with no sign-up required.

English Français DeutschEspañol

GratisSin subidasPrivado

💧 Watermark PDF

Add watermarks, stamps, and text to PDFs free with custom positioning. Watermark for branding or security. No upload - runs offline in your browser.

Abrir herramienta

Haz clic para abrir la herramienta Watermark PDF. Todos los archivos se procesan localmente en tu navegador.

Abrir herramienta - Watermark PDF

Cómo usar Watermark PDF

1
Upload your PDF
Click or drag your PDF into the Watermark PDF tool. The document loads locally in your browser.
2
Enter your watermark text
Type the watermark text you want - for example CONFIDENTIAL, DRAFT, your company name, or any custom label.
3
Customize the appearance
Adjust the font size, color, opacity, rotation angle, and position (center, header, footer, or corner) to get the exact look you need.
4
Download the watermarked PDF
Click Apply Watermark and then Download. Every page of your PDF will have the watermark embedded permanently.