1, text editing ability: Word is a word processing software with the function of editing and modifying text. By writing and editing in Word, the paper can be modified and adjusted in real time. PDF (Portable Document Format) is a file with a fixed format, which generally does not support direct editing.

2. Document format: Word files can contain multimedia elements such as words, images and tables, and can be formatted freely. PDF file is a fixed format document, which can maintain a consistent display effect on different platforms and devices.

3. Duplicate checking software support: Different duplicate checking software may have different support for different file formats. Some duplicate checking software supports uploading and testing Word documents directly, and some may need to convert Word documents into PDF format before uploading and testing.

Significance of duplicate checking of papers

1. Anti-plagiarism: Paper duplication checking can effectively detect whether there is plagiarism or plagiarism of other people's works in the paper. By comparing the similarity of papers with existing documents, network resources and other academic works, the duplicate checking system can quickly identify possible plagiarism, thus safeguarding academic integrity and intellectual property rights.

2. Improve academic quality: duplicate checking can make authors more cautious and self-disciplined, and avoid improper quotation and plagiarism. Through duplicate checking, the author can check and review his own papers, ensure the originality and accuracy of contents and opinions, and improve academic quality and credibility.

3. Promote academic exchanges and cooperation: Through duplicate checking, academic circles can better track and evaluate existing research results and reduce the situation of repeated publication and repeated research.

4. Protection of intellectual property rights: For researchers, duplicate checking can protect their research results and intellectual property rights. By checking the copies, researchers can ensure that their research results will not be copied, stolen or infringed by others without authorization.

5. Enhance academic reputation: For academic institutions and journals, a strict duplicate checking mechanism can enhance their academic reputation and evaluation criteria.