图纸加密方法有哪几种？七种告诉你如何加密图纸，快速学会！

Core Viewpoint - The article emphasizes the importance of effective encryption methods for protecting sensitive design documents, as leaks can lead to significant losses for companies [1]. Group 1: Encryption Methods - Method 1: Deploying secure software that utilizes high-strength encryption algorithms like AES and RSA for document protection [2]. - Method 2: Utilizing built-in encryption features in CAD software, allowing users to set passwords for file access [11]. - Method 3: Creating a virtual disk that is encrypted, requiring a password to access stored design documents [12]. - Method 4: Using cloud storage services that offer encryption features to ensure data security during transmission and storage [13]. - Method 5: Implementing hardware encryption devices such as encrypted USB drives or external hard drives for storing documents [15]. - Method 6: Regularly backing up important documents and ensuring that backup files are also encrypted to protect against data loss [18]. - Method 7: Applying blockchain technology to enhance document security by recording relevant information on the blockchain for authenticity and traceability [19]. Group 2: Security Features - Transparent encryption that encrypts files in real-time without user awareness, ensuring normal operations within the company while preventing unauthorized external access [4]. - Permission management that allows administrators to set specific access rights for users based on roles or departments, preventing unauthorized access and data leaks [7]. - Outbound control processes for documents sent to clients or partners, including approval workflows and usage restrictions to enhance security [9]. - Behavior monitoring and alerting systems that track access and modifications to documents, providing alerts for any suspicious activities [10].