You’ve just run your paper through a plagiarism checker and the similarity score came back higher than expected. Whether you’re a student finalising a thesis or a researcher preparing a manuscript for journal submission, a high plagiarism score doesn’t automatically mean you’ve done something wrong — but it does mean you need to act carefully.

Removing plagiarism from a paper isn’t about hiding similarities. It’s about ensuring that every idea you present is expressed authentically, attributed correctly, and supported by your own thinking. This guide walks you through exactly how to do that, step by step, without stripping the meaning or quality from your work.

What does it actually mean to ‘remove’ plagiarism from a paper?

Plagiarism in academic writing refers to presenting someone else’s ideas, words, or structure as your own — whether intentionally or not. Many students are surprised to learn that even properly paraphrased text can be flagged if sentence structures too closely mirror the source.

Removing plagiarism involves three main actions: rewriting content in your own voice, adding proper citations and references where required, and eliminating or restructuring passages that too closely echo their source. It does not mean simply swapping synonyms — this is one of the most common mistakes students make.

How do you identify which parts of your paper are plagiarised?

Before you can fix plagiarism, you need to know exactly where it is. Running your document through a reliable plagiarism checker like Plag gives you a detailed similarity report that highlights matched text, links to sources, and scores the risk level of each flagged section.

Plag’s colour-coded report distinguishes between improper citations (purple), proper citations (green), and paraphrased content that still reads too closely to the source (orange). This gives you a clear roadmap of what actually needs fixing — so you don’t waste time rewriting sections that are already compliant.

What do different similarity scores actually mean?

Effective paraphrasing is a skill, not a shortcut. The goal is to take an idea from a source and express it entirely in your own language, while still crediting the original author. Here’s how to do it well:

  • Read the original passage fully, then close or minimise it before writing your version.
  • Focus on the idea, not the wording. Ask yourself: what is this source actually saying?
  • Change the sentence structure entirely — not just individual words.
  • After writing your version, compare it to the original to confirm that they are structurally different.
  • Always include an in-text citation, even for paraphrased content — the idea still belongs to its original author.

Remember: paraphrasing without citation is still plagiarism, even if the words are entirely your own.

When should you quote directly instead of paraphrasing?

Direct quotation should be used sparingly — typically only when the exact wording of a source carries specific significance, such as a legal definition or a statement whose phrasing itself is being analysed. When you do quote directly, use quotation marks and provide a full citation including page number where applicable.

How do you fix improper or missing citations?

Missing citations are among the most common causes of unintentional plagiarism. If you have used an idea, statistic, argument, or piece of data from another source — even loosely — it needs a citation. Plag’s similarity report links directly to the sources that match flagged sections in your document, making it straightforward to locate the original reference and add a correct citation without searching from scratch.

What is the difference between a citation and a reference?

A citation is the brief in-text marker (e.g., Smith, 2021, p. 34). A reference is the full bibliographic entry at the end of your paper that allows a reader to locate that source independently. Both are required — an in-text citation without a corresponding reference list entry is incomplete, and vice versa.

What about self-plagiarism — can you plagiarise your own work?

Yes, and it’s more common than many students realise. Submitting the same paper (or sections of a paper) to more than one course without explicit permission is considered self-plagiarism. If you are building on your own prior work, acknowledge this explicitly — treat your earlier writing as a source and cite it accordingly.

How can Plag help you remove and prevent plagiarism?

Plag offers more than just a similarity score. Its plagiarism removal service connects you with skilled editors who can revise flagged sections in a way that preserves your meaning and voice while meeting the originality standards your institution requires.

Key features that support plagiarism removal on Plag include:

  • Colour-coded similarity reports that show exactly what needs attention and why
  • Direct links to the sources behind every flagged passage
  • Distinction between proper and improper citations, so that correct references are not penalised
  • Real-time detection against content published as recently as 10 minutes ago
  • A database of over 80 million scholarly articles for comprehensive academic coverage

Submit with confidence — your work, done right

Removing plagiarism from a research paper is not a last-minute fix — it is part of doing academic work responsibly. The earlier you check your paper during the writing process, the easier it is to address similarities before they compound into larger problems.If you are an educator, you can use Plag for free as part of our commitment to academic integrity worldwide.

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