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Uploading Exams and Marking Zones

After students complete the exam, collect, disassemble, and scan the pages for upload to Uflo.

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Scanning Best Practices

Scan quality directly affects how accurately Uflo can identify student submissions and grade handwritten responses. Follow these guidelines for the best results:
  • Use a flatbed or automatic document feeder (ADF) scanner for bulk scanning. Smartphone camera apps can work but are less reliable at scale.
  • Scan in black and white at 150 DPI minimum. 300 DPI is preferred for small handwriting.
  • Save as a single multi-page PDF, not individual image files.
  • Disable automatic image enhancements (“auto-rotate,” “skip blank pages,” “crop to content”) as these can alter orientation or remove pages.
  • Scan all pages in the same orientation (portrait or landscape).
Avoid Physical DamageDo not fold, crumple, or rubber-band pages. Physical damage to pages, especially near the QR code, prevents Uflo from reading the code during upload.
Best PracticeAfter scanning, scroll through the PDF to verify pages are scanned in the same orientation, QR codes are visible, and no pages are missing or duplicated.

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Marking Zones

Once you have a clean PDF of the scanned exams, follow these steps to upload them to Uflo:
1

Navigate to the Grading App

Navigate to the assessment created, click SYNC, and select Import Submissions.
2

Upload Submissions

Upload collected PDF scans. There are no restrictions on the number of files or pages.
3

Review Zones

Uflo automatically detects important landmarks on each template page: student identifiers, page numbers, QR codes, questions, and response boxes.Review each template page to ensure all detected boundaries are correct. If a boundary is misaligned, drag the handles to adjust it. Boundaries are allowed to overlap.
4

Verify Zones

Verify zones against a sample of scanned pages to confirm alignment is consistent.
5

Start Processing

Review the summary, then process the exam to identify students and their submissions.
No QR Codes? Use Page NumbersIf the exam was printed without QR codes, use page numbers to identify and order pages.

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Identifying Student Submissions

After processing, Uflo groups scanned pages into submissions and matches them to students.

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Identifying Issues

From the top navbar, use the filter tabs (Errors, Warnings) and issue navigation arrows to work through flagged submissions. Common issues include:
  • Missing, duplicate, or extra pages inside a submission
  • Student not identified or not found in roster
  • Orphaned pages that couldn’t be grouped into a submission

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Fixing Issues

Depending on the nature of the issue, Uflo provides a variety of tools to easily solve them:
Use the search dropdown inside the submission card to assign a student.
Drag page thumbnails between submissions to move shuffled pages.
Split a submission at any page boundary, or merge it into the previous one.
Delete individual pages or entire submissions that are not needed.
Clicking on a page thumbnail will open the PDF the submission is from.
Manually Review Student AssignmentsUse the student info thumbnail in each submission to verify the name is correct. Delete any submission whose name/id is illegible and re-upload once you’ve confirmed their identity.

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Uploading Additional Scans

Use the Scans tab in the navbar to view uploaded PDFs, remove a scan, or upload additional scans for reprocessing. You can upload new scans even after grading takes place.

Next: Grading the Exam

Run AI grading, import results, and review scores.
Last modified on April 9, 2026