Crowdmark
Crowdmark is a platform for grading handwritten student submission. These can be either regular assignments or exams. Crowdmark is especially well suited to distributed marking in teams.
Creating a course on CrowdMark
https://crowdmark.com/help/creating-a-course/
Syncing class roster
Creating an assignment
https://crowdmark.com/help/creating-an-assessment/
Also: https://crowdmark.com/help/choosing-an-assessment-type/
Setting due dates and late submission penalties
"During the assessment setup, you’ll be prompted to enter a due date and (optionally) a penalty for late submissions."
https://crowdmark.com/help/how-are-due-dates-and-penalties-enforced/
Waiving submission penalties for individuals
https://crowdmark.com/help/overriding-the-lateness-penalty-for-a-particular-student/
Distributing assignments to students
https://crowdmark.com/help/distributing-an-assignment-at-a-scheduled-time/
https://crowdmark.com/help/what-will-students-see-after-i-distribute-the-assessment/
Creating a comment library and sharing it with others
https://crowdmark.com/help/adding-comments/
https://crowdmark.com/help/using-the-comment-library/
https://crowdmark.com/help/importing-and-exporting-the-comment-library/