Encrypt Directory in Django

[Mannu Gupta]

I am trying to save a customer generated report in pdf format. I have used django file field to store the pdf. 

"models.FileField(upload_to='directory/pdfdirectory')"

Since it will be user-generated pdf and will be different for each user, 

Also along with making a custom subdirectory for every user (one encrypted folder per user), there may be multiple files within that.

Link if there are 100 users then all that 100 subdirectories should be encrypted.

What might be best possible way to implement the encryption part ?

Thanks in advance !