You can only contact paperyy official website customer service to solve the problem. PaperDay is a permanent and free paper duplicate checking software, with unlimited words per day, which is suitable for first draft detection. The duplicate checking process mainly includes the steps of registering an account, logging in, submitting a paper for free duplicate checking, waiting for the test results, checking the test report, modifying the right reduction, and submitting the test paper to the school. In addition, the PaperDay system also supports the detection of Chinese-English and multilingual papers, integrating document retrieval, paper duplicate checking, intelligent duplicate checking and synchronous online duplicate checking. By providing one-stop service from document search to paper duplicate checking, weight reduction and revision, the efficiency of paper writing can be greatly improved.

From the feedback of users, the duplicate checking result of PaperDay is OK, and the user experience is good, and it is relatively safe and will not be leaked. However, it should be noted that the accuracy of duplicate checking results depends not only on the tools used, but also on the individual's use skills and the originality of the paper. Therefore, when using PaperDay, it is necessary to combine various methods for detection to obtain more accurate results. Generally speaking, PaperDay is a good duplicate checking tool.