Unbiased side-by-side comparison of verified reviews, user ratings, features, and pros/cons to help you decide which software fits your business needs.


In our 2026 comparison of Nitro PDF Pro and Sumatra PDF, Nitro PDF Pro comes out ahead overall (weighted score 88% vs 83% for Sumatra PDF). Nitro PDF Pro is rated 4.4/5 from 232 user reviews; Sumatra PDF is rated 4.5/5 from 4 user reviews. Nitro PDF Pro starts at $14.99/month; Sumatra PDF has a free plan.
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| At a glance | Nitro PDF Pro | Sumatra PDF |
|---|---|---|
| Category | PDF Editors & Tools | PDF Editors & Tools |
| User rating | 4.4/5 (232 reviews) | 4.5/5 (4 reviews) |
| Starting price | $14.99/mo | Free plan |
| Listed features | 12 | 15 |
| Integrations | 3 | 1 |
| Platforms | Windows, macOS, iOS, Android, Web | Not specified |
| Ease of use | 4.7/5 | 4.5/5 |
| Customer support | 4.7/5 | 5.0/5 |
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One-time software purchase.
Cloud features and eSign.
Ultra-fast PDF reader.
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Nitro PDF Pro wins overall with a weighted score of 88% based on user rating, pricing, features, usability, and support.
Pricing: $14.99/mo (No Free Trial), a less accessible entry point than the leader.
Offers 12 features (fewer than the category leader).
Strong usability with a user rating of 4.7/5 stars.
Decent support with a user rating of 4.7/5 stars.
Not enough data on the other product(s) to rank this dimension fairly.
Dimension scorecard
Sumatra PDF is a runner-up with a composite score of 83%.
Sumatra PDF has the most accessible pricing ($0/mo (No Free Trial)).
Sumatra PDF lists the most features (15 features).
Strong usability with a user rating of 4.5/5 stars.
Ranked #1 for support with a user rating of 5.0/5 stars.
No data available for this product on this dimension yet.

Nitro PDF Pro scores higher across 4 of 11 key dimensions with a 5-point lead in our weighted analysis.
Nitro PDF Pro scores higher across 4 of 11 key dimensions with a 5-point lead in our weighted analysis. The best choice still depends on your team's workflow, budget and required integrations — use the side-by-side sections above to check the details that matter to you.
Nitro PDF Pro is rated 4.4/5 from 232 user reviews. Sumatra PDF is rated 4.5/5 from 4 user reviews. Ratings come from approved user reviews on SoftwareHope.
Nitro PDF Pro starts at $14.99/month. Sumatra PDF has a free plan. Always confirm current pricing on the vendor's site, as plans change.
Nitro PDF Pro does not list a free plan or trial; Sumatra PDF offers a free plan.
Nitro PDF Pro supports Windows, macOS, iOS, Android and Web; platform support is not specified for the others.
Nitro PDF Pro has an ease-of-use rating of 4.7/5, Sumatra PDF has an ease-of-use rating of 4.5/5. The difference is small, so both are similarly easy to adopt.
Community-voted helpful feedback from verified users
I use Nitro PDF Pro daily to manage our core tasks. In daily use with Nitro PDF Pro, excellent customer support responsiveness and comprehensive documentation. On occasion with Nitro PDF Pro, mobile application interface has minor feature gaps compared to the desktop app.
I use Nitro PDF Pro daily to manage our core tasks. The quality of the core content and the stability of the platform are exceptional. Sometimes it feels like you are paying for the brand name rather than just the content.
In our daily production workflow, the Nitro Analytics dashboard proved our organization saved over 12,000 printed pages in our first quarter, which resolved our previous operational bottlenecks.
After testing multiple competing tools, having unlimited e-signatures included with our Nitro licenses eliminated all our separate DocuSign billing costs, giving our team total confidence in daily use.
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