Software Alternatives, Accelerators & Startups

Sumatra PDF VS Censor

Compare Sumatra PDF VS Censor and see what are their differences

Sumatra PDF logo Sumatra PDF

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

Censor logo Censor

PDF document redaction for the GNOME desktop
  • Sumatra PDF Landing page
    Landing page //
    2022-07-28
Not present

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.

Censor features and specs

  • Open Source
    Censor is hosted on Codeberg, meaning its source code is publicly available, allowing users to inspect, audit, and modify the software to fit their specific needs without vendor lock-in.
  • Self-Hosted Control
    Being self-hosted, Censor gives administrators full control over their data and moderation processes, which is beneficial for privacy-conscious organizations that don't want to rely on third-party cloud services.
  • Community-Driven Development
    Hosted on Codeberg, a community-driven platform focused on free software, Censor benefits from a development model that emphasizes transparency and collaborative improvement over corporate influence.
  • Customizable Moderation
    As an open project, users can tailor the censorship or moderation rules to their specific community standards rather than being locked into a one-size-fits-all commercial solution.
  • No Licensing Costs
    Since it's free and open-source software, there are no licensing fees associated with using Censor, making it accessible for smaller communities or projects with limited budgets.

Possible disadvantages of Censor

  • Limited Documentation
    Smaller open-source projects like Censor often suffer from incomplete or sparse documentation, making it harder for new users to set up and configure the software correctly.
  • Smaller Community Support
    Compared to larger, more established moderation tools, Censor may have a smaller user base and community, resulting in slower responses to issues and fewer third-party resources or tutorials.
  • Self-Hosting Overhead
    Users must manage their own hosting, updates, and maintenance, which requires technical expertise and ongoing resource investment that isn't necessary with managed SaaS alternatives.
  • Potential for Slower Updates
    As a smaller open-source project, Censor may receive less frequent updates and security patches compared to well-funded commercial moderation platforms.
  • Feature Limitations
    Compared to mature commercial content moderation solutions, Censor may lack advanced features such as AI-based detection, extensive integrations, or scalability for very large platforms.

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

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

Censor videos

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Category Popularity

0-100% (relative to Sumatra PDF and Censor)
PDF Tools
96 96%
4% 4
PDF Editor
94 94%
6% 6
PDF Readers And Editors
100 100%
0% 0
Document Management
0 0%
100% 100

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 Censor

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.
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.
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

Censor Reviews

We have no reviews of Censor 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

Censor mentions (0)

We have not tracked any mentions of Censor yet. Tracking of Censor recommendations started around Aug 2026.

What are some alternatives?

When comparing Sumatra PDF and Censor, 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.

BlurData - Auto Blur sensitive data from Screenshots

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

PDF Redaction - Protect sensitive information in your PDF documents with AI-driven automatic redaction and manual editing options.

Wondershare PDFelement - All-in-one PDF editor

Redactable - Try the #1 redaction software. Our auto redaction gives you 98% time savings compared to Adobe and the rest!