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  1. Moodle
  2. MDL-68811

Assignment : blank or wrong display in PDF annotator for documents annotated outside Moodle

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: 3.7.6, 3.9
    • Fix Version/s: None
    • Component/s: Assignment
    • Labels:
    • Affected Branches:
      MOODLE_37_STABLE, MOODLE_39_STABLE

      Description

      When a student uploads a PDF document which has been annotated outside Moodle (e.g. with MS Edge or Drawboard PDF), Moodle's built-in PDF annotator sometimes displays a blank page (Moodle 3.7), sometimes the original document without annotations by the student (Moodle 3.9).

      To reproduce, you can use the attached document annotated_pdf.pdf, which was annotated with MS Edge (you can open it with a PDF reader it to verify that it contains annotations) :

      1. create an assignment with "File submissions" as submission type
      2. as a student, submit the attached document
      3. as a teacher, verify in the pdf annotating page that the submission is blank or doesn't contain the student's annotations.

      This can lead to serious problems, especially now that tablets/convertibles with touch screens become more common. Consider an assignment where the teacher asks the students to annotate a specific document on their computers, and to upload it back into Moodle. if the submission displays blank, the teacher might infer that there is a problem with the pdf file. But if the document appears without the student's annotations, the teacher might just think that the student has not done his/her work.

      Currently, the workarounds are :

       

       

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              Assignee:
              Unassigned Unassigned
              Reporter:
              monnardj Jacques Monnard
              Participants:
              Component watchers:
              Adrian Greeve, Jake Dallimore, Mathew May, Mihail Geshoski, Peter Dias, Sujith Haridasan
              Votes:
              3 Vote for this issue
              Watchers:
              6 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: