The reasons why zotero can't capture the pdf may be the paper itself, the failure to log on to China HowNet and the plug-in of zotero's own academic website.

The solution is as follows:

Operating environment: Dell Yue Ling 13pro, windows 10 system and documentation.

1. Find the file storage location in zotero.

2. Open the corresponding folder, find and open the translation subfolder.

Step 3 find CNKI.js

4. Download the compressed package, find the CNKI.js file and replace the original file.

Zotero function introduction:

Zotero's biggest advantage is that it can directly capture the document titles in the web pages of online document database. If we open the webpage of a document in the SD database, a "page" sign will appear at the end of the address bar of Firefox with Zotero installed.

Zotero is a free and easy-to-use Firefox extension. Zotero can help us collect, manage and quote research resources, including periodicals, books and other documents, web pages and pictures.

Different from Endnote, it is not an independent software, but a plug-in application embedded in browsers such as Firefox. With the development of the Internet, we get literature resources mostly through browsers, and the close combination of Zotero and browsers makes our work more convenient.