Open the electronic copy of your paper with your computer. Bring the cursor to the top left hand of the text with the computer's mouse. Click and hold down the left mouse button, and drag the cursor to the lower right hand of the text before releasing the mouse button. This action will select, or highlight, all the text of your paper. Press and hold the "Ctrl" key on the computer's keyboard and then press "C." Release both keys.
Navigate to a Web page which provides free plagiarism checking.
Paste the text of your paper into the text box on the plagiarism checking website. This will transfer your paper's text to the plagiarism checking program.
Click the appropriate button on the Web page to begin the search for plagiarized material. This is usually titled "Search," "Check for plagiarism," "Compare" or something similar. Examine the results of the search for references to which you do not credit in your paper.