The Moodle Accessibility File Scan block—or Moodle PDF Accessibility Check—was block—formerly the Moodle File Scan—was developed to help determine how friendly course PDFs are to assistive technology such as Read & Write, Kurzweil, screen readers, and various other tools students might use to help them consume course readings.
To access the File Scan (and all other blocks) open the "block drawer" on the right of your Moodle course. Please see Moodle Blocks for more thorough information.
The File Scan provides a Summary report on files in the course. Click View File Details to get more information.
The Moodle File Scan tool checks the accessibility of PDF files in a Moodle class and provides a report on the accessibility of each file. The status is either pass, fail, or check, or question. A PDF file fails if it does not contain pass any textof the checks. A file is marked as check if the file has text passes at least one check but does not have other accessibility elementsmeet all the checks. A PDF passes if it meets all the accessibility checks.
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Even if an instructor is not requiring students to utilize Moodle, the File Scan Filescan can be a great tool to see where the course stands in terms of accessibility, so do consider uploading files but hiding them from students in order to check their accessibility. |
What the tool checks for
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Language
A PDF file stores information about the language of the document. This is used by screen readers and other assistive devices to ensure proper pronunciation and particularly important for documents that are in foreign languages.
Text
If a PDF file does not have text the file has been scanned as an image. This means that screen readers and other assistive devices will not be able to read the content. As of fall 2023, our current goal is to strive for green checks under both the "Text" and the "Outline" columns on all documents (except where files are legitimate images not images of text).
Title
A PDF file stores metadata about the document, including the title of the document, which is different than the filename. Having a clear and accurate title helps ensure that users are reading the correct document. It also helps with findability. If the title is missing from the metadata fields, the PDF will fail this test.
Language
A PDF file stores information about the language of the document. This is used by screen readers and other assistive devices to ensure proper pronunciation and particularly important for documents that are in foreign languages.
Outline
Tagged
Creating structure in a PDF file allows screen readers to easily navigate a document.
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As of fall 2023, our current goal is to strive for green checks under both the "Text" and the "OutlineTagged" columns on all documents (except where files are legitimate images not images of text).
Symbols
The following symbols are used to display the result of the accessibility File Scan.
A green check means the test passed
A purple red X means the test failed
An orange exclamation mark means that the PDF is partially accessible
A blue question mark means that the file has not yet been scanned or the file has an error that prevents it from being scanned. The file could be corrupted or have a password that prevents the tool from opening the PDF.
How to Fix PDF Files
Check with the Library
Before fixing a document, check with the Library to see if they have the document in an accessible electronic format. This can save a lot of time.
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Use Optical Character Recognition (OCR) to extract the text from the image of the document. Here are a few options:
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- If there isn't any text in the document, please open a ticket with the help desk explaining that the Canon copier is not OCRing documents.
- How accurate is the text? If there are significant errors with the accuracy or the reading order, please open a ticket with the help desk and flag the document for the accessibility team.
Setting PDF Title, Language, and Outline
The title, language, and outline can often be fixed by using Adobe Acrobat DC's "Action Wizard", which can be found in the right sidebar. Look for this icon: 
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Not all documents can successfully be made accessible. A great deal depends on the quality of the original document (consult this guide from the University of Washington for what makes a high-quality scan). Even if Acrobat successfully translates an image of text to text, it is very important to review the document. Original documents of poor quality, documents that have a lot of notes or underlines, and documents with blurred text may result in inaccurate translations and gibberish. If you find this to be the case, please contact accessibility@swarthmore.edu for assistance in working with your file. |
More Information
The Moodle PDF Accessibility Check or Moodle File Scan is a very useful tool to use as an indicator of how much of your course material may be friendly to assistive technology. By assistive technology we mean tools like Kurzweil, Beeline Reader and Read & Write, screen readers such as VoiceOver, NVDA and JAWS, and various other tools people might use to help them consume course readings.We have a short video on the ITS blog space which explains how to access the block.
If you'd like to learn more about accessibility, check out these posts on the ITS blog.