: The best desktop software for managing your library and converting files (e.g., PDF to EPUB).
: A massive digital archive of Russian periodicals and books. 📱 Tools for Reading PDFs
: The industry standard for viewing and annotating PDFs.
: Offers over 70,000 free eBooks, specializing in classic literature.
The following guide outlines the most reliable and legal sources to build your digital library. 🏛️ Best Legal & Free PDF Repositories
: Avoid sites that look "spammy" or ask for credit card information for "free" access.
: Excellent for students; contains a vast collection of classic literature and study aids.
推奨環境
Windows : Microsoft Edge(最新版)、Google Chrome(最新版)、Mozilla Firefox(最新版)
Mac : Safari 7.0以降
