Proteger un PDF con contraseña
Cifra un PDF con AES-256 (máxima seguridad).
Proteger un PDF con contraseña. Cifra un PDF con AES-256 (máxima seguridad). 100% local, no upload. GDPR compliant.
Cómo funciona
Selecciona un PDF
Introduce una contraseña
Haz clic en «Ejecutar»
Why prefer local processing over an online tool?
Absolute privacy: your documents are never sent to a server. Zero risk of data leakage.
Automatic GDPR compliance: no data transfer means no complex registry obligations.
Offline operation: no internet connection needed. Ideal for travel or secure networks.
Speed: local processing is often faster than uploading + downloading from a remote server.
No file size limit: online tools often cap at 50-100 MB. SafePDF has no such limit.
No account required: no sign-up, no email, no trace.
SafePDF vs online tools
Most online PDF tools (iLovePDF, Smallpdf, PDF24, Soda PDF) work the same way: you upload your file to their servers, they process it, then you download it. This approach has three major problems: (1) your data transits through servers you don't control, (2) you don't know if the file is kept or deleted, (3) some companies have access to your document content. SafePDF eliminates these risks by processing everything locally. Your file never leaves your computer.
| SafePDF | Online tools | |
|---|---|---|
| Local processing | — | |
| Upload required | — | |
| Internet required | — | |
| GDPR by design | — | |
| Size limit | — | |
| Account required | — |
¿Por qué SafePDF?
100% local
Tus archivos nunca se suben. Todo ocurre en tu equipo.
Gratis para siempre
La herramienta de fusión es gratuita. Sin tarjeta, sin registro.
Seguro
Cifrado AES-256, firma Ed25519, código auditable.
Preguntas frecuentes
¿Nivel de seguridad?
AES-256, recomendado por el RGPD.
¿Contraseña perdida?
El PDF es irrecuperable.
Proteger PDF locally with SafePDF guarantees fast, free (for merge) or affordable (€12/month for 26 Pro tools) processing, and above all 100% confidential. Download SafePDF for free now and try it yourself. Installation takes less than a minute, no account required.