Watermark Pdf

process ficheiros online grátis. Processamento local no navegador. Sem upload, privacidade total, sem registo.

  • Free
  • No Signup
  • No Daily Limit
  • Browser-Based
  • No Server Upload
  • Fast Processing
  • Works on Mobile
42 pt
30%

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How to watermark a PDF with text or logo

Upload a PDF, add text or image watermarks, adjust opacity and placement, then apply to every page. Download the stamped document instantly.

Searching watermark pdf, stamp pdf, or add logo to pdf? This tool runs fully client-side.

Why choose SnapKit? Our tools are 100% Private, No Server Upload, Instant Browser-Based, with No File Size Limit.

When should you use this tool?

process ficheiros online grátis. Processamento local no navegador. Sem upload, privacidade total, sem registo.

Is my data uploaded to the server?

No. SnapKit processes your files entirely in your browser using client-side WebAssembly, Canvas, and Web APIs. Your documents, images, and audio never leave your device, and we do not store uploads on our servers.

¿Por qué elegir SnapKit?

Cada herramienta cumple cuatro promesas: privacidad, velocidad, libertad y accesibilidad.

  • 100% privado — sin subidas

    WebAssembly y Canvas en tu dispositivo. Ningún byte va a nuestros servidores.

  • Velocidad instantánea en el navegador

    Sin esperas de red. Tu CPU y GPU hacen el trabajo localmente.

  • Sin límite de tamaño — gratis

    Sin marcas de agua ni registros. Usa tonos, video, PDF e imagen libremente.

  • Funciona en todos los dispositivos

    iPhone, Android, Windows y Mac con la misma experiencia privada.

Perguntas frequentes

Can I watermark every page of a PDF?

Yes. Watermarks can be applied across all pages in one action.

Can I use both text and image watermarks?

Yes. Combine confidential text with a logo stamp when needed.

Is watermark pdf free?

Yes. Watermarking is free with no watermark on the tool itself.

Os meus dados estão seguros com esta ferramenta?

Sim. Processamento 100% local com WebAssembly e APIs do navegador.

Porque é tão rápido?

Porque o ficheiro nunca sai do navegador. SnapKit usa WebAssembly e Canvas localmente.