Software Alternatives, Accelerators & Startups

Sumatra PDF VS GetAnnotator

Compare Sumatra PDF VS GetAnnotator and see what are their differences

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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.

GetAnnotator logo GetAnnotator

Hire Top 1% Annotators โ€” Dedicated, Fully Managed, Ready in 24 Hours
  • Sumatra PDF Landing page
    Landing page //
    2022-07-28
  • GetAnnotator
    Image date //
    2025-11-28

GetAnnotator is the first platform purpose-built to help you hire data annotators every monthโ€”no middlemen, no delays, no guesswork.

We simplify AI development by matching startups, research teams, and enterprises with skilled annotators aligned to your tools, domain, and project goals.

Whether you're training a computer vision model or fine-tuning NLP pipelines, our ready-to-deploy annotation teams scale with your needs and are fast. Backed by Macgence AI, a global leader in AI training data, we bring the experience of 10K+ delivered projects and are trusted by 1,000+ companies worldwide. Our datasets consistently achieve ~95%+ accuracy across modalities.

Faster onboarding. Human-in-the-loop efficiency. Consistent qualityโ€”delivered.

GetAnnotator

$ Details
paid $499.0 / Monthly
Release Date
2025 May
Startup details
Country
India
State
UP
City
Noida
Founder(s)
Harshul Arora
Employees
20 - 49

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.

GetAnnotator 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.

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

GetAnnotator videos

No GetAnnotator 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 GetAnnotator)
PDF Tools
100 100%
0% 0
Professional Services
0 0%
100% 100
PDF Editor
100 100%
0% 0
Data Science And Machine Learning

Questions & Answers

As answered by people managing Sumatra PDF and GetAnnotator.

What makes your product unique?

GetAnnotator's answer:

GetAnnotator stands out because it offers dedicated annotators on a subscription model, eliminating the hassle of hiring, training, and managing annotation teams. Unlike traditional outsourcing, you get a fully managed annotation workflow, including a project coordinator, quality auditing, 24/7 communication, and the ability to scale instantly. Our approach blends the flexibility of an internal team with the efficiency of an external serviceโ€”ensuring faster delivery, consistent accuracy, and predictable monthly costs.

Why should a person choose your product over its competitors?

GetAnnotator's answer:

People choose GetAnnotator because we make data labeling simple, fast, and reliable:

  • Dedicated annotators assigned within 24 hours
  • No hiring, recruitment, or training overhead
  • Multi-domain expertise โ€” including image, video, audio, NLP, 3D/LIDAR, medical, finance, and RLHF tasks
  • Strict quality control, with a proven accuracy benchmark (~95%+)
  • Transparent, predictable monthly pricing
  • Scalable resourcesโ€”add or reduce annotators anytime
  • Enterprise-grade privacy and security

Competitors offer annotation โ€” we offer end-to-end annotation management.

How would you describe the primary audience of your product?

GetAnnotator's answer:

GetAnnotator is built for teams that need high-quality labeled data without operational complexity. Our typical users include:

  • AI/ML startups building models
  • Enterprises developing computer vision, NLP, or speech AI
  • Research labs and academic institutions
  • Companies needing domain-specific annotation (medical, legal, automotive, geospatial, etc.)
  • Product teams that require ongoing annotation support
  • Organizations scaling AI operations without hiring large in-house teams

In shortโ€”anyone who needs reliable, managed, and scalable data annotation.

What's the story behind your product?

GetAnnotator's answer:

GetAnnotator was created after observing a common challenge across AI teams: While model development has become easier, getting high-quality annotated data is still slow, expensive, and chaotic.

Companies were struggling with:

  • Hiring skilled annotators
  • Training them for domain-specific tasks
  • Managing quality, timelines, and revisions
  • Scaling up quickly for large datasets

This led to the idea of a subscription-based dedicated annotator modelโ€”where teams can instantly get trained, managed, high-quality annotators without the burden of hiring.

GetAnnotator was built to remove the friction from data labeling and give AI teams a faster path from concept to production.

Which are the primary technologies used for building your product?

GetAnnotator's answer:

GetAnnotator uses a reliable and modern tech stack designed for speed, security, and scalability. Core technologies include:

  • Frontend: React, TailwindCSS
  • Backend: Node.js / Express
  • Database: PostgreSQL
  • Authentication & Access Control: JWT, OAuth
  • Cloud Infrastructure: AWS (EC2, S3, RDS), Cloudflare security
  • Real-time updates & communication: WebSockets
  • Annotation Tools: Custom-built annotation interfaces + integrations with leading annotation platforms Monitoring & Analytics: Grafana, Prometheus

This tech foundation ensures a smooth, secure, and high-performance experience for clients.

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 GetAnnotator

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

GetAnnotator Reviews

We have no reviews of GetAnnotator 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

GetAnnotator mentions (0)

We have not tracked any mentions of GetAnnotator yet. Tracking of GetAnnotator recommendations started around Nov 2025.

What are some alternatives?

When comparing Sumatra PDF and GetAnnotator, 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.

Annotator - Image annotation for Elementary OS

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

Good Annotations - A online annotation tool that is perfect for providing feedback to your team.

Wondershare PDFelement - All-in-one PDF editor

Unidata.pro - Services for ML & AI models for data scientists