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Sumatra PDF VS PdfToolStack

Compare Sumatra PDF VS PdfToolStack and see what are their differences

DocRaptor
As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more sponsored
Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Sumatra PDF logo Sumatra PDF

Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.

PdfToolStack logo PdfToolStack

AI-powered PDF tools for small teams โ€” compress, sign, extract, and review with AI
  • Sumatra PDF Landing page
    Landing page //
    2022-07-28
  • PdfToolStack Landing page
    Landing page //
    2026-08-20

Sumatra PDF features and specs

  • Lightweight
    Sumatra PDF is known for its small footprint, making it quick to download and install. It runs efficiently on older hardware.
  • Speed
    The application is fast to open and navigate, even with large PDF files, enhancing the user experience.
  • Simplicity
    Sumatra PDF offers a minimalistic interface that is easy to navigate for users who need a straightforward PDF reader without unnecessary features.
  • Portable Version
    Sumatra PDF offers a portable version that can be run without installation, ideal for use on multiple computers or USB drives.
  • Free and Open Source
    The software is free to use and open-source, allowing users to inspect the code and contribute to its development.
  • Support for Multiple Formats
    In addition to PDFs, Sumatra PDF supports ePub, Mobi, XPS, DjVu, CHM, and comic book formats (CBZ and CBR), making it versatile.

Possible disadvantages of Sumatra PDF

  • Limited Features
    Sumatra PDF lacks advanced features such as form filling, text editing, and annotations, which are available in other PDF readers.
  • No Document Editing
    The application does not support document editing, which can be a drawback for users needing to make changes to their PDFs.
  • Basic User Interface
    The simplistic design might not appeal to users who prefer a more modern or visually appealing interface.
  • Restricted Customization
    Sumatra PDF offers limited customization options, providing fewer settings and user preferences compared to other PDF readers.
  • No Cloud Integration
    The software lacks integrated support for cloud storage services, which can be inconvenient for users who manage documents online.
  • No Advanced Security Features
    Sumatra PDF does not include advanced security features such as digital signatures or encryption, which are essential for some professional users.

PdfToolStack features and specs

  • All-in-One PDF Solution
    PdfToolStack offers a comprehensive suite of PDF tools including merging, splitting, compressing, converting, and editing PDFs, eliminating the need for multiple separate applications.
  • Web-Based Convenience
    Being an online tool, it requires no software installation, allowing users to access PDF utilities from any device with an internet connection.
  • User-Friendly Interface
    The platform is designed with simplicity in mind, making it accessible for users with varying levels of technical expertise to perform PDF operations quickly.
  • Free Access to Basic Features
    Many core functionalities are available at no cost, making it an attractive option for users with occasional or basic PDF processing needs.
  • Cross-Platform Compatibility
    Since it operates through a web browser, PdfToolStack works across different operating systems including Windows, Mac, and Linux without compatibility issues.

Possible disadvantages of PdfToolStack

  • Internet Dependency
    As a web-based tool, it requires a stable internet connection to function, making it unusable in offline scenarios or areas with poor connectivity.
  • Privacy and Security Concerns
    Uploading sensitive or confidential documents to an online platform raises potential privacy risks, as files are processed on external servers.
  • File Size Limitations
    Free versions of online PDF tools often impose restrictions on file size or the number of operations, which can be limiting for users with large documents.
  • Potential Advertisements
    Free web-based tools frequently include ads or upsell prompts for premium features, which can disrupt the user experience.
  • Limited Advanced Features
    Compared to dedicated desktop PDF software, PdfToolStack may lack more sophisticated editing capabilities needed by professional or power users.

Analysis of Sumatra PDF

Overall verdict

  • Sumatra PDF is a great choice for anyone looking for a reliable and efficient PDF reader. Its performance, coupled with its simplicity, makes it a top recommendation for those who need a no-frills document viewer.

Why this product is good

  • Sumatra PDF is considered good because it is lightweight, fast, and easy to use. Its simplicity and minimalistic design make it an excellent choice for users who need a straightforward PDF reader without any unnecessary features. It has a quick load time and supports a variety of document formats including PDF, ePub, MOBI, CHM, XPS, DjVu, CBZ, and CBR. Additionally, it is open-source and doesn't require installation, making it ideal for users who prioritize portability.

Recommended for

    Sumatra PDF is especially recommended for users who need a fast and lightweight PDF reader with basic functionalities. It's ideal for those who want a simple tool for reading PDFs and other document formats without the complications of advanced features. It is also suitable for users who value open-source software.

Sumatra PDF videos

+ Add

Sumatra PDF my favorite PDF reader for Windows

More videos:

  • Review - Sumatra PDF A FREE Portable PDF reader for Windows 10 | Alternative To Adobe PDF Reader

PdfToolStack videos

No PdfToolStack videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Sumatra PDF and PdfToolStack)

Sumatra PDF

PdfToolStack

PDF Tools
97 97%
PDF Tools
3% 3
PDF Compressor
0 0%
PDF Compressor
100% 100
PDF Editor
96 96%
PDF Editor
4% 4
PDF Readers And Editors
100 100%
PDF Readers And Editors
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Sumatra PDF and PdfToolStack

Sumatra PDF Reviews

The Most Recommended 9 Free PDF Readers in 2023
Sumatra PDF Reader is a lightweight PDF reader with the basics of PDF viewing and processing. It works with various versions of the Windows operating system, such as the previous XP, Vista, 7, 8 and the latest Windows 10.
Source: www.geekersoft.com
Top 10 Free eBOOK Readers for PC
A free eBook reader for Windows that can act as an all-in-one tool is Sumatra PDF Reader. Besides being free of cost, Sumatra is small and portable, which makes it a fast and lightweight tool for eBook viewing. The tool also features a simple and user-friendly interface with a near-to-zero learning curve. Sumatra can prove beneficial as the best EPUB reader for your PC.
Source: updf.com
10 of the Best Ebook Readers for Windows, macOS, and Mobile
Being a simple application, the user interface itself is pretty minimal. Whatโ€™s more, Sumatra does lack some advanced features. Bookmarks, highlights, and other typical features arenโ€™t in the box. Even so, Sumatra is a great choice as a capable and lightweight application that just works.
Source: www.maketecheasier.com
13 of the Best Free PDF Readers
Users who want the ability to view their PDF in different modes should consider Sumatra PDF. Sumatra PDF allows users to view their PDFs as a single page, in book format or as a presentation. There are also shortcuts included that make navigating the PDF easier and faster. Sumatra PDF might not have all the features of some other PDFs viewers, but it is still a reliable tool...
Source: www.indeed.com
Top 10 Adobe Reader Alternatives for Windows
We have mentioned 10 good Adobe reader alternatives that you can use to replace Adobe Acrobat Reader. Depending on your usage and requirement you can choose anyone. For example, if you just want an app to read the PDF documents, you can simply use your browser. If you want something light, you can download the Sumatra PDF. Just read the article and find the one that meets...
Source: beebom.com

PdfToolStack Reviews

We have no reviews of PdfToolStack yet.
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Social recommendations and mentions

Based on our record, Sumatra PDF seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Sumatra PDF mentions (1)

  • anyone know any good epub/pdf readers for windows 11?
    You can use your browser for both, there are extensions(FireFox - PDF & EPUB/Chrome - PDF& EPUB) for that. In case, you want you use a separate software for them, I suggest SumatraPDF--it handles both PDFs and .EPUB files. Source: over 3 years ago

PdfToolStack mentions (0)

We have not tracked any mentions of PdfToolStack yet. Tracking of PdfToolStack recommendations started around Jun 2026.

What are some alternatives?

When comparing Sumatra PDF and PdfToolStack, you can also consider the following products

Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.

iLovePDF - Premium online PDF tool set

Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.

Wondershare PDFelement - All-in-one PDF editor

Smallpdf - PDF document management and conversion suite

PDF-XChange Editor - The smallest, fastest, most feature-rich PDF editor/viewer available

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