Bookends是一款Mac上优秀的文献书籍管理工具，可以帮助我们管理书籍参考链接和文献，并且支持导入EndNote、PubMed等软件的信息，批量扫描Word文档，支持各国语言。


Bookends is a full-featured bibliography/reference and information-management system for students and professionals.
Bookends uses the cloud to sync reference libraries on all the Macs you use. Access the power of Bookends directly from Mellel, Nisus Writer Pro, or MS Word (including Word 2016): Bookends allows you to scan your existing word-processor files and automatically generate finished manuscripts with properly formatted bibliographies. You can also scan Apple Pages ’08, ’09, and 5, and OpenOffice 3 files, or RTF files saved from any word processor.
Bookends allows you to share your references over the Internet with anyone, on any platform. And with Bookends, you can directly search and import references from numerous sources:
PubMed
Web of Science
JSTOR
Google Scholar
Amazon
Library of Congress
arXiv
and hundreds of other online sources.
Or use a built-in browser to download references with PDF’s and/or Web pages. Also, with automatic searches of PubMed, you can discover articles as soon as they’re published. Bookends allows for powerful group-based searches, with static, smart, virtual groups, and smart folders that make hierarchical searches easy.
Bookends also offers a robust assortment of file attachment features:
Attach any file (such as a PDF) to a reference and view or open it instantly.
Automatically rename and organize PDF files on-the-fly.
Automatically download and attach the PDF of an article from the Internet if you have access permission.
Automatically locate and attach PDF’s on your hard drive.
Easily migrate references and attachments from other reference managers to Bookends.
Sync your library with Bookends On Tap on your iPad, iPhone, or iPod touch, so that you have your references and PDF’s with you, wherever you are.
Annotate and markup PDFs and have the information instantly accessible in notecards.