Software Alternatives & Startups
Register | Login

Smallpdf VS OpenSign

Compare Smallpdf VS OpenSign and see what are their differences

Smallpdf

PDF document management and conversion suite

Rating
0 reviews
Alternatives Is it good?
OpenSign

Your ultimate open source PDF e-signature solution.

Rating
4.5 · 2 reviews
Pricing
Open source Freemium $329 / Annually
Alternatives Is it good?
JustDocz
Private document search for Windows. Find files by what’s inside them — locally, without uploading your documents. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Smallpdf seems to be more popular. It has been mentioned 38 times since March 2021.

social mentions
38 vs 0
PDF Tools popularity
100% vs 0%
alternatives listed
240+ vs 68

Base details

Website, pricing, platforms and company facts side by side.

Smallpdf
OpenSign
Website smallpdf.com opensignlabs.com
Pricing
Official pricing
Open source Freemium $329 / Annually Official pricing
Company — Startup from the United States · 10 - 19 employees · 2023
Listed in
PDF Tools PDF Creator File Converter File Sharing +1
eSignature Document Management Document Automation Electronic Signature Digital Signatures Digital Sign +3

About Smallpdf and OpenSign

In their own words, as submitted to SaaSHub.

Smallpdf
OpenSign

No description of Smallpdf yet.

We are excited to introduce the OpenSign™ – a game-changing open source project that promises to transform the way individuals and businesses secure their digital transactions. OpenSign was born out of a very simple vision – to create a digital signature tool that everyone can trust and use for...

Read more about OpenSign

Features and specs

What each product offers, as listed by its team.

Smallpdf 6 features
OpenSign 5 features
  • User-Friendly Interface
    Smallpdf provides a clean, intuitive, and easy-to-navigate interface, making it accessible for users of all technical levels.
  • Wide Range of Tools
    Offers a variety of tools for PDF editing, including compressing, merging, splitting, and converting PDFs to other formats.
  • Cloud Integration
    Seamlessly integrates with cloud storage services like Google Drive and Dropbox, allowing users to work directly with their files stored online.
  • Security
    Utilizes strong encryption and deletes files from their servers after one hour, ensuring user data is kept secure and private.
  • Cross-Platform Availability
    Accessible from various devices including desktops, tablets, and smartphones with responsive web design.
  • Free Tier
    Provides a free tier with limited features, which is suitable for occasional or basic users.

Possible disadvantages

  • Limited Free Features
    The free version only allows for two tasks per day and places restrictions on larger files and advanced features, leading to potential inconvenience for frequent users.
  • Subscription Cost
    The premium subscription can be considered expensive for some users, particularly those who only need occasional PDF edits.
  • File Size Limit
    Even with a premium subscription, there are restrictions on the maximum file size that can be uploaded and processed.
  • Internet Dependence
    Requires an active internet connection to use most of its features, which can be a limitation for users with unreliable or slow connectivity.
  • Privacy Concerns
    Despite strong encryption, some users may still have reservations about uploading sensitive documents to an online service.
  • Limited Customization
    The range of customization options for certain tools may be limited compared to more specialized PDF software.
  • User-Friendly Interface
    OpenSign features a clean and intuitive interface that makes it easy for users to navigate and manage digital signatures efficiently.
  • Security
    It employs robust encryption methods ensuring that all documents and signatures are secure and compliant with legal regulations.
  • Integration
    OpenSign offers seamless integration with various third-party applications, enabling users to incorporate digital signatures into their existing workflows effortlessly.
  • Cost-Effective
    Compared to some competitors, OpenSign provides a more affordable solution for digital signing, especially beneficial for small to medium-sized businesses.
  • Customizable Features
    Users can tailor the platform to meet their specific business needs through customizable workflows and form templates.

Possible disadvantages

  • Limited Offline Access
    OpenSign requires an internet connection to access most features, which may be inconvenient for users needing to work in offline environments.
  • Learning Curve
    While the interface is user-friendly, some advanced features may require a learning period, potentially slowing down initial deployment.
  • Support Response Time
    There are reports of delayed response times from customer support, which could be critical when addressing urgent technical issues.
  • Feature Limitations on Lower Plans
    Certain advanced features and integrations might only be available on higher-tier plans, limiting functionality for users on more affordable plans.
  • Competitive Market
    In a rapidly evolving digital signature market, OpenSign faces strong competition, requiring continuous innovation to stay ahead.

Analysis

An editorial look at what each product does well and who it suits.

Smallpdf
OpenSign

Overall verdict

  • Smallpdf is a reliable and efficient tool for managing PDF documents, suitable for both casual users and professionals. Its combination of versatility, ease of use, and security features makes it a strong contender in the realm of online PDF services.

Why this product is good

  • Smallpdf is considered good because it offers a wide range of PDF tools that are easy to use and accessible online. It provides functionalities such as PDF conversion, compression, editing, and signing, all within a user-friendly interface. This makes it an ideal choice for both individuals and businesses looking for efficient document management solutions. Additionally, it emphasizes security by ensuring encrypted file transfers, which is crucial for handling sensitive information.

Recommended for

  • Individuals who frequently work with PDFs and need a straightforward tool for conversions, compressions, or edits.
  • Students who need to annotate and organize their study materials in a PDF format.
  • Professionals who require a reliable tool for signing documents and collaborating with team members remotely.
  • Businesses looking for secure document management solutions with the flexibility of online access.

No analysis of OpenSign yet.

Videos

Walkthroughs and reviews on video.

Smallpdf 3 videos + Add
OpenSign 2 videos + Add

smallpdf tutorial video

More videos

  • - Smallpdf Review
  • - Smallpdf | How to do Unlimited Free Conversions ? | Hack for Smallpdf | Bypass limit of 2 conversion

OpenSign bulk send feature

More videos

  • - OpenSign introduction

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Smallpdf
OpenSign
100% 100%
PDF Tools
0% 0%
0% 0%
eSignature
100% 100%
100% 100%
PDF Editor
0% 0%
0% 0%
Document Management
100% 100%

Questions & Answers

As answered by people managing Smallpdf and OpenSign.

What makes your product unique?

OpenSign's answer:

🔐 Unparalleled Security: OpenSign employs state-of-the-art encryption and secure storage techniques to protect your sensitive information. We prioritize data privacy and security, ensuring your documents are safe from unauthorized access.

⚙️ Flexible Hosting Options: OpenSign offers both self-hosting and cloud hosting options, providing you with the flexibility to choose the setup that best fits your organization’s needs. This adaptability allows you to have complete control over your document management environment.

📥 User-Centric Design: Our platform is designed with the user in mind, featuring an intuitive interface that makes managing documents simple and efficient. Tasks like downloading, renaming, moving, and deleting files are made easy, even for those who aren’t tech-savvy.

⚡ Efficiency and Speed: OpenSign streamlines document management processes, saving you time and effort. Our efficient system ensures quick access and manipulation of files, boosting overall productivity.

📊 Comprehensive Feature Set: From basic document management tasks to advanced features like digital signatures and automated workflows, OpenSign covers all your needs. This all-in-one approach eliminates the need for multiple tools and platforms.

🔄 Continuous Innovation: We are committed to continuous improvement and regularly update our platform with new features and enhancements. Our proactive approach ensures that OpenSign evolves to meet the ever-changing demands of the digital world.

👥 Community and Support: Join a community of users who share best practices and tips. Our dedicated support team is always ready to assist you, ensuring you get the most out of OpenSign.

Why should a person choose your product over its competitors?

OpenSign's answer:

Security: Advanced protection for your documents. Flexibility: Self-hosting and cloud hosting options. Accessibility: Anywhere, anytime document access. Usability: Intuitive and user-friendly interface. Performance: Efficient and fast document management. Feature-Rich: Comprehensive tools in one platform. Innovation: Continuous updates and improvements. Support: Community and dedicated customer support. Affordability: Competitive pricing with great value.

Which are the primary technologies used for building your product?

OpenSign's answer:

Primary Technologies Used in OpenSign Backend Development:

Node.js: For server-side logic and handling asynchronous operations efficiently. Express.js: A lightweight framework for building web applications and APIs. MongoDB: A NoSQL database for scalable and flexible data storage. Redis: For caching and improving the performance of the application.

Frontend Development:

React.js: For building a dynamic and responsive user interface. Redux: For state management, ensuring a consistent application state across components. Bootstrap: For responsive design and quick UI development. Authentication and Security:

OAuth 2.0: For secure and standardized authentication. JWT (JSON Web Tokens): For secure token-based authentication and authorization. BCrypt: For password hashing and securing user credentials. File Handling and Storage:

AWS S3: For scalable and secure cloud storage of documents. File System (FS): For local storage and file handling in self-hosted environments.

Deployment and DevOps:

Docker: For containerizing applications, ensuring consistency across different environments. Kubernetes: For orchestrating containerized applications, ensuring scalability and reliability. CI/CD Tools: Tools like Jenkins, GitHub Actions, or GitLab CI for continuous integration and deployment. Monitoring and Analytics:

User comments

Share your experience with using Smallpdf and OpenSign. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

External articles and on-site reviews we used to compare the two products.

Smallpdf no reviews yet
OpenSign 4.5 · 2 reviews

View more

  • Great product!
    SaaSHub review
    · Oct 2025

    Great product! very user-friendly with excellent plans and pricing. Everyone should try it- it’s free!

  • Best alternative to docsusign
    SaaSHub review
    · Jul 2024

    OpenSign is the best alternative to docusign, in terms of Pricing, User friendly ui, Open source, and Most of the essential features the offering in free plan

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Smallpdf 38 mentions
OpenSign 0 mentions

View more

Tracking OpenSign since Nov 2023.

Alternatives to Smallpdf and OpenSign

When comparing Smallpdf and OpenSign, you can also consider the following products.

Loading...