SumatraPDF vs Thorium Reader

SumatraPDF

Description: SumatraPDF is a free and open-source PDF, eBook, XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. It is lightweight, customizable, and supports many advanced PDF features.

Type: software

Pricing: Open Source

Thorium Reader

Description: Thorium Reader is an open-source RSS reader and news aggregator. It allows you to subscribe to RSS feeds and read articles from various websites and news sources in one place. Features include automatic feed updates, offline reading support, article search and tagging, dark mode, and cross-platform sync.

Type: software

Pricing: Open Source

SumatraPDF Features

• Lightweight and fast PDF reader
• Supports many document formats like PDF, ePub, MOBI, XPS, DjVu, CHM, CBZ, CBR
• Customizable with themes, keyboard shortcuts
• Tabbed document interface
• Supports annotations and highlighting
• Continuous scrolling
• Supports reflowable text
• Supports digital signatures
• Supports comics book formats
• Supports eBooks
• Supports syncing open documents across devices

Thorium Reader Features

• RSS/Atom feed support
• Offline reading
• Dark mode
• Article search
• Article tagging
• Cross-platform sync

SumatraPDF

• Open Source

Thorium Reader

• Open Source