Haihaisoft PDF Reader
Altarsoft PDF Reader
eXPert PDF Reader
Xodo
Cool PDF Reader
Flipping PDF Reader
Adobe Acrobat DC
Foxit PhantomPDF
DeepDyve
Academia.edu
Mendeley
Zotero
Google Scholar
ResearchGate
Crossref
PubMed.gov
Haihaisoft PDF Reader DeepDyveAltarsoft PDF Reader - Altarsoft PDF Reader is a simple to use PDF files management program that allows its users to view PDF files, encrypt the files and even annotate these files as well.
Academia.edu - Academia is a website where you can share papers that are written with other users. You can use a Google or Facebook account to sign in to the website.
eXPert PDF Reader - eXPert PDF Reader is a free to use PDF reader and views for the Windows operating systems.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Xodo - Try easy-to-use PDF tools that keep your documents safe. Work with your important files across all platforms and devices with the ultimate all-in-one document solution. Your productivity lives at Xodo!
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.