STDU Viewer vs SumatraPDF

Struggling to choose between STDU Viewer and SumatraPDF? Both products offer unique advantages, making it a tough decision.

STDU Viewer is a Office & Productivity solution with tags like pdf, images, office-documents, email, epub, tabbed-browsing, annotations.

It boasts features such as Supports viewing over 20 file formats including PDF, images, Office documents, emails, archives, EPUB books, Tabbed browsing for opening multiple files, Thumbnail previews, Bookmarks and annotations, Portable software - no installation required, Lightweight and fast and pros including Free and open source, Clean and intuitive interface, Good format support, Useful viewing features like tabs, thumbnails, bookmarks, Portable so can take it anywhere, Light on system resources.

On the other hand, SumatraPDF is a Office & Productivity product tagged with pdf, ebook, reader, lightweight, opensource.

Its standout features include 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, and it shines with pros like Lightweight and fast, Supports many document formats, Free and open source, Customizable, Good support for comics and eBooks.

Feature	STDU Viewer	SumatraPDF
Overall Score	N/A	N/A
Primary Category	Office & Productivity	Office & Productivity

Product Overview

STDU Viewer

Description: STDU Viewer is a free portable software used to open and view various file types like PDFs, images, Microsoft Office documents, emails, archives, EPUB books and more. It supports viewing over 20 file formats and includes features like tabbed browsing, thumbnail previews, bookmarks and annotations.

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.

Key Features Comparison

STDU Viewer Features

• Supports viewing over 20 file formats including PDF, images, Office documents, emails, archives, EPUB books
• Tabbed browsing for opening multiple files
• Thumbnail previews
• Bookmarks and annotations
• Portable software - no installation required
• Lightweight and fast

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

Pros & Cons Analysis

STDU Viewer

Pros

• Free and open source
• Clean and intuitive interface
• Good format support
• Useful viewing features like tabs, thumbnails, bookmarks
• Portable so can take it anywhere
• Light on system resources

Cons

• Limited editing capabilities
• Less features than full featured PDF editors
• UI could be more modern
• No cloud storage integration

SumatraPDF

Pros

• Lightweight and fast
• Supports many document formats
• Free and open source
• Customizable
• Good support for comics and eBooks

Cons

• Limited annotation features compared to advanced PDF editors
• Lacks OCR capabilities
• No cloud storage integration
• No mobile apps

Pricing Comparison

STDU Viewer

• Free
• Open Source

SumatraPDF

• Free
• Open Source