Top Protect PDF Alternatives

Proton Mail

Proton Mail is a secure email app offering end-to-end encryption, privacy-focused features, and integration with third-party clients.

Proton Drive

Proton Drive is a secure cloud storage app that allows users to safely store, manage, and share sensitive documents with strong privacy protections.

MEGA

MEGA is a cloud storage service that offers 50 GB of free storage with end-to-end encryption, secure file sharing, and user-controlled file access across multiple devices.

Tuta

Tuta is a secure email service that offers end-to-end encryption for emails, calendars, and contacts, ensuring private and confidential communication.

LockPDF

LockPDF protects PDF documents by encrypting them with passwords, restricting access, editing, and printing, while allowing document revocation and tracking.

Mailfence

Mailfence is a secure email service that offers encrypted communication and productivity tools like calendars, document storage, and chat for organizing personal and professional tasks.

SecureSafe

SecureSafe is a secure cloud storage and password manager for businesses, designed to protect sensitive data with encryption and security protocols.

Element

Element is a secure platform for encrypted communication and collaboration, offering chat and video calls while allowing users control over their data.

Internxt

Internxt is a secure cloud storage app that offers file management, encryption, and decentralized storage, ensuring user privacy across devices.

Hushmail

Hushmail is a secure email service with encryption, designed for privacy and HIPAA compliance, also offering secure web forms and digital signatures.

Wire

Wire is an encrypted communication app for messaging, voice, and video calls, supporting secure collaboration for personal and business use.

StartMail

StartMail is a secure email service that offers end-to-end encryption, unlimited aliases, and anti-spam features to protect user privacy and data.

FileOpen

FileOpen is a rights management app that secures digital documents through encryption and access controls, ensuring only authorized users can view them.

NordLocker

NordLocker Business is an encrypted cloud storage service for securely storing, sharing, and managing business data, accessible only by authorized users.

Virtru

Virtru provides end-to-end encryption for data in business applications, allowing organizations to protect sensitive information and manage access controls easily.

Threema Work

Threema Work is a secure, GDPR-compliant messaging app for businesses, enabling text, voice, and video communication without needing a phone number.

PrivateBin

PrivateBin is a secure, open-source pastebin that encrypts data client-side, allowing users to share text privately with options for expiration and secure deletion.

FileShot.io

Secure file sharing and storage with browser-side (zero-knowledge) encryption, short links/QRs, expirations and download limits, paid access, PDF tools, metadata scrubbing, and APIs.

Vaulty

Vaulty securely transfers sensitive data like passwords or API keys with end-to-end encryption across various insecure channels.

Siilo

Siilo is a secure messaging app for healthcare professionals, enabling private communication and coordination of patient care with end-to-end encryption.

Tresorit

Tresorit is a secure file collaboration platform offering end-to-end encryption, allowing users to manage, share, and sync files while ensuring data privacy.

Skiff

Skiff is an encrypted email and collaboration platform that offers secure communication, document management, and calendar integration for individuals and teams.

Cryptee

Cryptee is a secure, open-source platform for storing and editing documents, notes, files, and photos, emphasizing privacy and data protection.

KeepSec

KeepSec is a security-focused app that provides secure storage for sensitive information and advanced protocols to protect user data.

Vitrium

Vitrium provides DRM solutions to protect and manage sensitive digital content, ensuring secure access and tracking for videos, documents, and audio files.

Zangi

Zangi is a secure messaging app that enables anonymous communication with end-to-end encryption, protecting user privacy without requiring personal details.

Silent Circle

Silent Circle is a secure communication app for encrypted calls, messaging, and file transfers, aimed at businesses and individuals prioritizing privacy.

DOCGuard

DOCGuard detects and analyzes malicious documents in various formats, integrating with email and file-sharing platforms to enhance cybersecurity.

CTemplar

CTemplar is an encrypted email service that provides end-to-end encryption for secure email communication and protects users' data privacy.

ShareSecret

ShareSecret allows users to securely share and manage sensitive information like passwords and tokens in an encrypted vault that auto-expires.