"I find television very educating. Every time somebody turns on the set, I go into the other room and read a book" Groucho Marx

AlfaReader vs SumatraPDF

February 27, 2026
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AlfaReader
AlfaReader
AlfaReader is a lightweight and fast ebook reader, ideal for reading electronic magazines, student textbooks, medical, scientific, technical books, illustrated books for kids. Allows to make bookmarks, save knowledge blocks, add comments, download books for OPDS. Includes built-in audiobook player. Integrates with popular ebook organizer Alfa Ebooks Manager.
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SumatraPDF
SumatraPDF
SumatraPDF, also known as Sumatra, is a free and open-source software PDF reader for Microsoft Windows only. The program also opens Open XML Paper Specification, DjVu, EPUB, XPS, CHM, CBZ and CBR, and MOBI files
AlfaReader vs SumatraPDF in our news:

2022. Alfareader adds highlited annotations and notes



Alfa.NetSoft has released the new version of their reading app for Windows - Alfareader. The software was fully revamped and redesigned. It's home page now provides Google-like search with attractive bookshelf of recently read books. You can now adjust not only reading template, but also the theme of the main interface. The new timeline tool allows quickly navigate inside book. Moreover, Alfareader now provides tools to save and manage knowledge-blocks. You can easily annotate/highlight text and save the citate to Highlights panel. You can also add own notes/comments to these citates. Besides, Alfareader has a separate section where you can read and manage highlighted notes from all your books.

Author: Maria Lin
Maria Lin, is a seasoned content writer who has contributed to numerous tech portals, including Mashable and bookrunch, as a guest author. She holds a Master's degree in Journalism from the University of California, where her research predominantly concentrated on mobile apps, software, AI and cloud services. With a deep passion for reading, Maria is particularly drawn to the intersection of technology and books, making book tech a subject of great interest to her. During her leisure time, she indulges in her love for cooking and finds solace in a good night's sleep. You can contact Maria Lin via email maria@bookrunch.com