Navigating the world of plagiarism detection can be tricky, especially when trying to understand what tools like Turnitin can and cannot detect. This article aims to unravel these complexities, shedding light on precisely how Turnitin works with different types of documents.
So, can Turnitin read images?

Key Takeaways
- Turnitin can check many file types for copies but it has troubles with images and PDFs.
- It cannot scan text inside pictures or find stashed white words in files.
- Turnitin may miss words that are said differently, called paraphrasing.
- Old work might confuse Turnitin and cause wrong flags for copied work.
- Using other tools together with Turnitin makes your checks stronger against copied parts.
Table of contents

Understanding What Turnitin Can and Cannot Check
Turnitin is capable of checking a wide range of file types for plagiarism, but it comes with its limitations. The system accepts specific file formats required for an effective similarity check, and these include Word documents (.doc/.docx), PostScript (.ps), HTML files, plain text files (.txt) among others.
On the other hand, image files and certain PDFs pose distinct challenges due to inherent compatibility issues that restrict Turnitin’s ability from scanning them accurately. For instance, Scan-to-text software may be needed in cases where there are scanned PDFs or image-based content that need to be examined by Turnitin as the platform lacks native optical character recognition capabilities.
Therefore understanding such restrictions enables users to maximize their utilization of this tool while maintaining academic integrity effectively.
File Requirements
Turnitin needs files in certain forms to check them. These forms include Word, PowerPoint, and Excel files. These must be less than 40MB or have fewer than 400 pages. Turnitin can also read HTML and plain text files as well as PostScript and PDFs with highlightable text.
But it cannot read texts in screenshots or detect font size in a file. It views PDFs as images, so it doesn’t scan these for copied content either. It’s good to know what Turnitin can do before you make use of this tool.
Types of Files Turnitin Can and Cannot Scan
Turnitin can scan many different kinds of files.
- Microsoft Word and PowerPoint
- Postscript and plain text
- HTML and Adobe PDF
- Rich Text Format
- WordPerfect documents
- Image files like JPEG, PNG, GIF
- Files with a lot of photos, graphs or tables
- Scanned files as Turnitin cannot read text from images or photos
- Chat logs as these do not contain highlightable text
Restrictions on Images and PDFs
Turnitin has rules for images and PDFs. It can check these files but it’s not perfect. Images with words may cause trouble. Turnitin doesn’t read them well because they are like photos, not text.
It’s the same with PDFs that have pictures or other visual data. Turnitin cannot look at font size or white words either. It just checks and compares what is submitted to its large list of writings which mostly includes texts.
Can Turnitin Read Images?
Turnitin has a way to check images. But, there are some things it can’t do. It cannot read text in screenshots or detect the size of words. Also, if your words are white, Turnitin will not see them.
This tool checks photos by looking for matches. It uses a large group of school papers to do this. Yet, it’s good to know that Turnitin works best with texts.
Even though Turnitin helps find copies, it is not perfect. Seeing if work is just like another does not mean someone stole ideas. So don’t only depend on Turnitin to tell you if something is copied or not.
Limitations of Turnitin in Detecting Plagiarism
Dive into the exploration of Turnitin’s limitations, including its inability to scan images and PDFs for plagiarism, challenges in detecting paraphrased content, and issues with previously submitted work – all crucial facets you need to grasp for a comprehensive understanding.
Stay tuned to learn more about these intricacies!
Inability to Check Images and PDFs
Turnitin has limits. It can’t check images or PDF files for copied work. Texts inside screenshots cannot be read by Turnitin. This makes screenshotted content safe from its scan for copied work.
Also, font size and white words in a file don’t catch Turnitin’s eye. It does not view PDFs as text files but sees them as image data instead. Thus, it won’t scan or check them for likeness with other works.
Challenges with Identifying Paraphrasing
Turnitin finds it hard to spot words that are the same but said in a different way. We call this paraphrasing. For example, if a student changes some words or makes small edits to sentences from another source, Turnitin may not see it.
This is one big limit of Turnitin.
Paraphrasing can give students problems and should be avoided when writing original work. When you have to tell someone else’s ideas in your own words, you still need to say where those ideas came from — and Turnitin cannot always catch that.
So, while Turnitin is good at finding exactly copied work, it can miss pieces of work that have been changed just enough not to look alike.
Limitations with Previously Submitted Work
Turnitin has a hard time with old work. It does not see if that work was used before. This can lead to false matches in its reports. For example, if a student turns in the same paper twice, Turnitin will flag it as copied.
Even though it’s the same person’s work, Turnitin might say it is stolen.
There is also an issue with how often the database updates itself. It takes 24 hours for new papers to show up there. If two students turn in the same work on one day, Turnitin won’t know until the next day that they did this wrong thing.
Tips for Using Turnitin Effectively
Educate yourself on the importance of self-checking your work. Utilize other resources for additional referencing checks to ensure academic integrity. Stay aware of file requirements and limitations, as understanding these can help maximize Turnitin’s efficacy.
Acknowledge that while Turnitin is a powerful tool in detecting plagiarism, it has its own limitations which makes your personal honesty and proactive measures crucial in maintaining academic integrity.
Understanding the Importance of Self-Checking
Self-checking is key when using Turnitin. It helps you to be sure your work is original. Do not wait for Turnitin to find matches for you. Stand on guard against copying other people’s works.
Make sure all ideas and words from others are properly quoted or cited in your paper.
Doing self-checks also points out errors that might slip past you. You will see if there are wrong words, bad grammar, or poor sentence structure in your work. Also, note that Turnitin cannot check texts inside images or detect font sizes and white words.
So, keep these facts in mind when doing a self-check of your paper.
Using Other Resources for Referencing Checks
Many tools can help us check our work for copying. It’s good to use more than one way of checking. You can use these other tools:
- Online Plagiarism Checkers: Many websites let you upload your work and check it for copied parts.
- Google Search: If you are not sure about a part of your work, put it in Google search. It can show if the same words exist on another site.
- Citation Software: Tools like EndNote or Mendeley can help you keep track of where ideas come from.
- Peer Reviews: Ask a friend or classmate to read your work. They might catch something you missed.
- Tutor Services: Many schools have places where tutors will look at your papers and help make sure they are okay.
Conclusion and final thoughts ðŸ’
Turnitin is a useful tool for detecting potential plagiarism, but it has limitations that are important to understand.
The system can effectively scan text-based files like Word docs and HTML, but struggles with image files and PDFs without selectable text.
Turnitin also faces challenges identifying paraphrased content and with previously submitted student work.