GemBox.Pdf
GemBox.Pdf: A feature-rich .NET PDF SDK with a free mode and $890 one-time entry price. Ranked #19 of 31 in PDF SDKs by our editors (7.2/10); pricing: Free plan · 30-day trial; best for developers wanting a low-cost .NET PDF SDK.
At a glance
- Editor score7.2 / 10
- PricingFree plan · 30-day trial
- Best forDevelopers wanting a low-cost .NET PDF SDK
- Free planYes
- Paid from$890/user one-time
- Deployment modelHybrid
- Founded2006 · Zagreb, Croatia
- Facts checked20 Sep 2026
Where it wins
- Covers forms, OCR, editing, redaction, encryption, and signatures
- Supports .NET, Windows, Linux, macOS, mobile, Azure, and Docker
- Royalty-free deployment with one year of support and updates
Where it doesn't
- The free mode is limited to two pages
- Language coverage is limited to C# and VB.NET
- Included support, updates, and bug fixes last one year
Our verdict on GemBox.Pdf
GemBox.Pdf is a standalone .NET library for reading, writing, editing, converting, rendering, printing, merging, splitting, and securing PDF files. It is aimed at developers building desktop, web, mobile, and service applications with C# or VB.NET. Its feature set covers document operations, interactive forms, OCR text extraction from scanned PDFs, redaction, encryption, digital signatures, page manipulation, and PDF-to-image conversion.
Pricing is structured around a free mode, a 30-day evaluation mode, and commercial perpetual licenses. The free mode is limited to two pages. The Single Developer plan costs $890 one-time and includes royalty-free deployment, one year of professional technical support, and one year of free updates and bug fixes. Small Team costs $4,450 one-time with the same included benefits, while Large Team costs $13,350 one-time and also includes royalty-free deployment plus one year of support, updates, and bug fixes. This makes the entry license straightforward for individual developers, while the team plans address broader licensing needs.
Platform coverage is a strong fit for .NET teams: GemBox.Pdf supports .NET 6.0–.NET 10, .NET Standard 2.0+, .NET Framework 4.6.2+, ASP.NET Core, Azure, Docker, WPF, MAUI, Xamarin, NuGet, Windows, Linux, macOS, iOS, and Android. Developers can add text, shapes, hyperlinks, watermarks, charts, barcodes, headers, and footers, while also managing bookmarks, attachments, images, and document properties. Choose GemBox.Pdf when C# or VB.NET coverage matches your application and you need broad PDF processing in one SDK. Teams requiring other programming languages should choose an alternative.
Your product? Our editors can test GemBox.Pdf in depth and publish a review, labelled as paid · from $149/mo →
GemBox.Pdf pricing
All 3 GemBox.Pdf plans and prices →
GemBox.Pdf fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $890/user one-time |
| PDF operations | Reading, writing, editing, updating, generation, HTML conversion, PDF-to-image/XPS conversion, rendering, printing, merging, splitting, forms, OCR extraction, redaction, encryption, and digital signatures. |
| Supported platforms | .NET 6.0–.NET 10, .NET Standard 2.0+, .NET Framework 4.6.2+, Windows, Linux, macOS, Android, iOS, ASP.NET Core, Azure, Docker, WPF, MAUI, and Xamarin. |
| Language coverage | C# and VB.NET |
| Deployment model | Hybrid |
| Annotation tools | Yes |
| Commercial license | Yes |
| Free trial | 30 days |
| Money-back guarantee | 30 days |
| Deployment | Self-hosted, Desktop, Mobile |
| Platforms | Windows, Linux, macOS, iOS, Android |
| Support | Email, Phone, Tickets, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: .NET 6.0–.NET 10, .NET Standard 2.0+, .NET Framework 4.6.2+, ASP.NET Core, Azure, Docker … |
| Pricing | Free plan · 30-day trial (source) |
| Website | gemboxsoftware.com |
| Facts checked | 20 Sep 2026 |
GemBox.Pdf integrations
GemBox.Pdf lists 10 integrations on its own site.
- .NET 6.0–.NET 10
- .NET Standard 2.0+
- .NET Framework 4.6.2+
- ASP.NET Core
- Azure
- Docker
- WPF
- MAUI
- Xamarin
- NuGet
Alternatives to GemBox.Pdf
- Foxit PDF SDKA broad commercial PDF SDK for teams building document-heavy applications across major platforms.9.3
- Nutrient SDKA broad cross-platform PDF SDK with a useful free viewer tier and quote-based commercial licensing.8.9
- Adobe PDF Library SDKA native PDF SDK for enterprise applications that need broad document processing capabilities.8.8
See all GemBox.Pdf alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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