Users are advised to use word files when uploading papers. Compared with pdf file, word file is less likely to cause recognition errors in knowledge duplicate checking system. Duplicate checking, the so-called duplicate checking of papers, is to compare your own papers with the database of the paper detection system and get the similarity ratio with the major discussion libraries. When you review a paper, it is often the case that your document cannot be uploaded. Most paper duplicate checking software supports WORD, DOC and docx systems, but does not support PDF files.
As an early draft, there is no need to upload files other than Word, because after the Word file is submitted for testing, the testing system will automatically identify it to determine whether it is tested somewhere. However, the detection results in pdf format are easy to make mistakes, which leads to inaccurate detection results. Because the system will convert the pdf file into text after uploading it to the paper duplicate checking system, it will only lead to the system not being able to accurately identify which tests should not be detected, which is prone to errors.