Feature Request: Add Encryption Options on Export
possibly using: https://sourceforge.net/projects/qpdf/
http://qpdf.sourceforge.net/files/qpdf-manual.html
http://qpdf.sourceforge.net/
http://qpdf.sourceforge.net/files/qpdf-manual.html#ref.encryption-options
You can add encryption by printing to file.
Would be nice to select which encryption key to use though.
Anything we could provide would be equivalent to that, as we really should not go beyond PDFKit. Qpdf is most definitely not an option.