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Sumatra PDF VS GetProofAnchor

Compare Sumatra PDF VS GetProofAnchor and see what are their differences

KeptPDF
Redact, edit, OCR, and sign PDFs entirely in your browser. The file never leaves your device. Free, no account needed. sponsored
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Sumatra PDF logo Sumatra PDF

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

GetProofAnchor logo GetProofAnchor

Capture tamper-evident web evidence with screenshot, video, HTML, hashes, eIDAS and Bitcoin timestamping. GetProofAnchor preserves online content in a verifiable evidence package for legal, compliance, audit, and investigation use cases.
  • Sumatra PDF Landing page
    Landing page //
    2022-07-28
  • GetProofAnchor Getproofanchor.com
    Getproofanchor.com //
    2026-05-16

GetProofAnchor is a web evidence platform that helps individuals, companies, legal teams, auditors, journalists, and investigators capture and preserve online content as verifiable digital proof.

Instead of relying on ordinary screenshots, GetProofAnchor creates a tamper-evident evidence bundle that can include a screenshot, video, captured HTML, extracted text, metadata, cryptographic hashes, a verification report, DNS, TLS and timestamping records. The goal is to make it easier to prove what existed online at a specific moment in time — even if the page is later changed, deleted, edited, or disputed.

GetProofAnchor is designed for situations where online content matters: website changes, social media posts, public claims, misleading information, policy pages, competitor content, compliance records, online harassment, defamation, disputes, investigations, and regulatory documentation.

Each capture is built with integrity in mind. The evidence package can be independently reviewed, verified, and archived, helping users maintain a stronger chain of custody than a normal screenshot or browser printout. GetProofAnchor supports public web captures and is built with forensic-style documentation, auditability, and long-term verification in mind.

The platform is especially useful for lawyers, compliance teams, journalists, OSINT researchers, businesses, and anyone who needs reliable proof of online content before it disappears.

Sumatra PDF

Website
sumatrapdfreader.org
Pricing URL
-
$ Details
-
Release Date
-
Edit details

GetProofAnchor

Website
getproofanchor.com
Pricing URL
Official GetProofAnchor Pricing
$ Details
paid Free Trial €19 / Monthly (10 proofs)
Release Date
2026 January
Startup details
Country
Czech Republic
City
Prague
Founder(s)
Robert Bernasek
Employees
1 - 9
Edit details

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.

GetProofAnchor features and specs

No features have been listed yet.

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.

Analysis of GetProofAnchor

Overall verdict

  • I don't have verified information about GetProofAnchor (getproofanchor.com) as it appears to be a niche or lesser-known product that isn't well-documented in my training data, so I can't confirm its quality or legitimacy with confidence.

Why this product is good

  • Unable to verify the company's track record, customer reviews, or business legitimacy
  • No confirmed information about product features, pricing, or service quality
  • Cannot validate claims made on the website without independent verification
  • Insufficient data to compare it against established competitors in its space

Recommended for

  • Anyone considering this service should independently research the company, check for verified customer reviews on third-party sites, look for business registration details, and verify contact information before making any commitments
  • Consider consulting recent user reviews on trust platforms like Trustpilot, checking domain registration age via WHOIS, and testing customer support responsiveness before purchasing

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

GetProofAnchor videos

+ Add

Getproofanchor in 30 seconds

Category Popularity

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

Sumatra PDF

GetProofAnchor

PDF Tools
100 100%
PDF Tools
0% 0
Audit
0 0%
Audit
100% 100
PDF Editor
100 100%
PDF Editor
0% 0
Security
0 0%
Security
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 GetProofAnchor

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. What’s more, Sumatra does lack some advanced features. Bookmarks, highlights, and other typical features aren’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

GetProofAnchor Reviews

We have no reviews of GetProofAnchor yet.
Be the first one to post

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

GetProofAnchor mentions (0)

We have not tracked any mentions of GetProofAnchor yet. Tracking of GetProofAnchor recommendations started around May 2026.

What are some alternatives?

When comparing Sumatra PDF and GetProofAnchor, 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.

Proofsnap - Preserve web pages as legally admissible evidence.

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

Wondershare PDFelement - All-in-one PDF editor

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

Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.

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