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If your university uses Moodle, chances are your assignments run through Turnitin, and every submission you make opens inside a tool called the Turnitin Document Viewer. This viewer is where your similarity report, AI writing indicators, and instructor feedback all appear in one place. Understanding how it works helps you read your results accurately instead of guessing what the percentages mean [1].
How Do I Open the Turnitin Document Viewer in Moodle to See My Similarity Report?
You open the Turnitin Document Viewer directly from your Moodle assignment page — there is no separate app or login to manage. After you submit a Turnitin assignment in Moodle, the similarity report becomes available from the same submission area where you uploaded your file, and clicking the report link opens the viewer over your course site [2].
The process is the same whether you are a student checking your own work or an instructor reviewing submissions. On the assignment page, locate your submitted file or the similarity icon next to it, and the document viewer loads with your paper displayed in the center of the screen [2].
Once the viewer opens, the layout is consistent: your document appears as the main pane, with the similarity score shown prominently and highlighted matches marked directly on your text. From there, you can switch between the similarity view and other tabs such as feedback or AI writing indicators without leaving the viewer [1].
A few practical details matter when you first open the report. The similarity report is not instant — Turnitin needs time to process your submission, so if the report link is greyed out, check back after processing completes [2]. On smaller screens, the viewer collapses into a mobile-friendly layout, but the report and its highlights remain fully readable [1].
What Do the AI Writing Report and Similarity Highlights Inside the Turnitin Document Viewer Show?
Inside the document viewer, the AI writing report works side by side with similarity highlights, and it is important not to confuse the two. The AI writing report shows an overall percentage that reflects how much of the submitted text may have been generated by AI tools, based on Turnitin's detection model [3].
Turnitin displays the AI indicator as a percentage, but there is an important display rule: any AI score below 20% is shown as an asterisk (%) rather than a single-digit number such as 3% or 12% [3]. This means if you see % in your viewer, your result falls below the 20% reporting threshold, not that Turnitin failed to produce a score [3].
In addition to the overall number, the viewer highlights AI writing indicators inline within your document, so you can see exactly which sentences or paragraphs contributed to the score. These inline highlights are distinct from similarity matches, which flag text matching other sources [3].
Because both signals appear in the same viewer, you can compare them side by side: similarity tells you where your text overlaps with existing sources, while the AI indicator estimates AI-generated content. Reading them together gives you a much more complete picture of how your submission will look to your instructor [3].
Can I Check My Turnitin AI and Similarity Scores Before Submitting My Assignment in Moodle?
In most Moodle setups, the official similarity report is only generated after you submit, and Turnitin's AI writing detection results are typically not shown to students until after submission either. That means the score you see inside the Moodle document viewer is usually your first look at the final result — which can be a stressful surprise if it is higher than expected [4].
Turnitin itself emphasizes that the AI indicator is an estimate, not a judgment, and that a high percentage does not automatically mean academic misconduct. Their guidance encourages treating the score as a starting point for discussion rather than a verdict, and the same logic applies to similarity percentages [4].
That is exactly why many students run a check before submitting: to preview the AI and similarity scores their instructor would see, so they can fix flagged sections or high-matching passages while there is still time. A pre-submission check uses the same Turnitin detection model that produces the reports inside Moodle, giving you an early, realistic read on your draft [4].
Knowing your numbers in advance changes how you use the document viewer too. Instead of opening the report after submission and reacting, you can submit with confidence, then use the viewer in Moodle to confirm the final result matches what you expected [4].
Want to know exactly what your instructor will see before you hit submit? turnitin0 gives you real Turnitin AI and similarity reports on your own draft — the same style of report that appears in the Moodle document viewer — so you can catch AI flags and high similarity before they ever reach your course.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Q1: What is the Turnitin Document Viewer in Moodle?
The Turnitin Document Viewer is the interface where your submitted paper appears alongside your similarity report, AI writing indicators, and instructor feedback. You open it from your Moodle assignment page, and it is the same viewer instructors use when grading [1].
Q2: Why does my AI score show as *% instead of a number?
Turnitin displays any AI writing score below 20% as an asterisk (%) rather than a numeric percentage such as 3% or 12%. Seeing % means your score falls below the 20% reporting threshold [3][4].
Q3: Can I see my similarity report before submitting in Moodle?
In most Moodle configurations, the official Turnitin similarity report is only generated after you submit the assignment. To preview scores in advance, you need to run a separate Turnitin check on your draft before submitting [2][4].
Q4: Do similarity and AI scores mean the same thing?
No. The similarity score shows how much of your text matches existing sources, while the AI writing indicator estimates how much may have been generated by AI tools. The document viewer shows both, but they measure different things [1][3].
Q5: Is a high AI score proof of cheating?
No. Turnitin states that the AI indicator is an estimate and should not be used as a judgment of misconduct. A high score is a starting point for discussion, and instructors are advised to interpret it with context [4].