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What are the file types and file size supported by Turnitin?

Target Audience: Instructor/Student

If an assignment is set to allow any file type, Turnitin will accept any file:

  • less than 40 Mbs
  • has a minimum of 25 words; and
  • is less than 400 pages.

If the assignment is set to allow only file types that Turnitin can check for originality, Turnitin will only accept files that can generate Originality Reports. This includes:

  • Microsoft Word® (.doc/.docx)
  • OpenOffice Text (.odt)
  • WordPerfect® (.wpd)
  • PostScript (.ps/.eps)
  • HTML
  • Hangul Word Processor file (.hwp)
  • Rich text format (.rtf)
  • Plain text (.txt)
  • Google Docs via Google Drive™
  • Adobe® PDF
  • Microsoft PowerPoint® (.pptx, .ppt, .ppsx, and .pps)
  • Microsoft Excel® (.xls and .xlsx)


For best results in checking for matching text in the Turnitin resources, single-column text-based documents such as PDF, DOC, TXT and HTML should be used for the paper submission. If you are using an unsupported word processor, save them as plain text file as .txt or .rtf for uploading to Turnitin.

Password protected files or files containing only images of text will be rejected during the upload attempt.