# Watermarking & Security

3 articles

- [CORE Watermarks: Overview, Specifications, & Display Comparison](https://core-help.sohonet.com/en/articles/85816-core-watermarks-overview-specifications-display-comparison)
- [Security - Add PDF Passwords to Downloads](https://core-help.sohonet.com/en/articles/85817-security-add-pdf-passwords-to-downloads)
- [How to Add a Watermark to Shared FilesHow CORE watermarks files.](https://core-help.sohonet.com/en/articles/85818-how-to-add-a-watermark-to-shared-files)