I'm a high school teacher in Switzerland I regularly have to correct students essays handwritten or paper.
I sucessfully do this in the following way using Evernote:
Students hand in their texts.
I open a new note in Evernote Mobile and I take photographs of all handwritten pages of one student.
I use a new note for each student
(A reduced resolution is good enough and doesn't overload the notes)
(I watch out for the correct orientation of the camera)
I sync all the notes to my my computer and rename them logically with the students'