Encrypted GNU/Linux OS (based on Debian Wheezy) which can be installed on USB flash drive. Freepto is designed for encrypt your communications, carry your documents in secure way and save your anonymity.
MAT is a toolbox composed of a GUI application, a CLI application, and a library.
Metadata within a file can tell a lot about you. Cameras record data about when a picture was taken and what camera was used. Office documents like pdf or Office automatically add author and company information to documents and spreadsheets. Maybe you don't want to disclose those information on the web.
I think it's a good idea integrate this tool:
MAT is a toolbox composed of a GUI application, a CLI application, and a library.
https://mat.boum.org/