Firefox PDF Viewer (PDF.js) vs Freebook Sifter
A side-by-side look at Firefox PDF Viewer (PDF.js) and Freebook Sifter. For an in-depth review of either product, follow the links below.
Firefox PDF Viewer (PDF.js)
Web Browsers
Firefox PDF Viewer (PDF.js) is an open source PDF viewer that is built into Firefox. It allows you to view PDFs directly in the browser without needing an external plugin.
open-sourcepdfviewerfirefoxbrowser-plugin
Freebook Sifter
News & Books
Freebook Sifter is an ebook management tool that helps users organize, search, and access their ebook libraries. It allows uploading ebooks in multiple formats and extracts metadata automatically. Key features include full-text search, tags/collections, reading progress syncing, and recommendations.
ebooklibrarymanagementmetadatasearchrecommendations
Related Comparisons
PDF-XChange Viewer
Google Docs Viewer
Nuance PDF Reader
Qoppa PDF Studio