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Best PDF SDKs 2026
Facts read 29 Sep 2026 – 11 Oct 2026
PDF SDKs provide PDF operations and annotation tools for software projects. They help developers compare options for adding PDF capabilities to products and services.
The standings: top 10
| Name | Record score | Price from | Try it free | Runs on | Facts read |
|---|---|---|---|---|---|
| 01 Spire.PDF | 6.2 | $999 one-time | Free plan | Android, iPhone & iPad, Web, Windows | 5 Oct 2026 |
| 02 ComPDFKit PDF SDK | 6.1 | $240 a year | Free plan | Android, iPhone & iPad, Web, Windows | 1 Oct 2026 |
| 03 GemBox.Pdf | 5.8 | $890 one-time | Free plan | Android, iPhone & iPad, Windows, Mac | 4 Oct 2026 |
| 04 Syncfusion PDF Library | 5.8 | $1,199 a year | Free plan | Android, iPhone & iPad, Web, Windows | 3 Oct 2026 |
| 05 MuPDF | 5.7 | $299 a month, billed yearly | Free plan | Android, iPhone & iPad, Web, Windows | 29 Sep 2026 |
| 06 Nutrient SDK | 5.5 | Free plan | Free plan | Android, iPhone & iPad, Web, Windows | 29 Sep 2026 |
| 07 IronPDF | 5.4 | $999 one-time | Free trial | Web, Windows, Mac, Linux | 8 Oct 2026 |
| 08 Prince | 5.4 | $2,000 a year | Free plan | Windows, Mac, Linux, API | 5 Oct 2026 |
| 09 QuestPDF | 5.3 | $1,999 a year | Free plan | Windows, Mac, Linux, Self-hosted | 7 Oct 2026 |
| 10 Aspose.PDF | 5.2 | $1,199 one-time | Free trial | Android, Web, Windows, Mac | 8 Oct 2026 |
This list is ordered by newest releases first, using figures makers publish, with no scores. Review free-plan availability, entry-level paid prices, platform coverage, languages, deployment approaches and commercial licensing.
02
ComPDFKit PDF SDK
AndroidiPhone & iPadWeb+5 Record6.1 Visit
03
GemBox.Pdf
AndroidiPhone & iPadWindows+3 Record5.8 Visit
04
Syncfusion PDF Library
AndroidiPhone & iPadWeb+5 Record5.8 Visit
05
MuPDF
MuPDF is for developers who need document processing in desktop, server, cloud, or embedded projects.
AndroidiPhone & iPadWeb+4 Record5.7 Visit
12
WeasyPrint
WindowsMacLinux+2 €150 a year Record5.2 Visit It suits web developers creating PDFs from web content, including reports and invoices.
18
Ghostscript
WindowsMacLinux+2 Free plan Record4.8 Visit Ghostscript suits developers and organizations that need document rendering, conversion, or PDF processing across different systems.
Before you choose
Check plans, prices and trials
Entries on this list include free plans, including Apache PDFBox, Ghostscript and Adobe Document Generation API. Paid pricing can start at a stated amount or require a quote.
Trial lengths differ: Aspose.PDF, ComPDFKit PDF SDK and Foxit PDF SDK show 30 days, callas pdfToolbox SDK shows 14 days, and GdPicture.NET shows 60 days.
Match the deployment model
The listed SDKs cover Linux, Windows, macOS, web and API environments. Self-hosted deployment is another option listed for this category.
Check that the SDK's deployment model fits how your application runs before choosing a plan.
Compare PDF and annotation work
Review the PDF operations supported by the SDK, then check its annotation tools. Language coverage can affect how the SDK fits your development stack.
The comparison fields call out these capabilities directly, so use them to narrow the tools that match your project.
Read the commercial licence
Commercial licence terms can differ between SDKs. Check the licence before shipping software or embedding an SDK in a paid product.
Pricing and licence questions may require contacting the maker, as shown by entries with pricing on request.
Questions
Are free plans available among these PDF SDKs?
Yes. Apache PDFBox, Ghostscript and Adobe Document Generation API show free plans; GemBox.Pdf and ComPDFKit PDF SDK do as well.
Which PDF SDKs include trial periods?
Aspose.PDF, ComPDFKit PDF SDK and Foxit PDF SDK show 30-day trials. callas pdfToolbox SDK shows 14 days, while GdPicture.NET shows 60 days.
Which deployment platforms are supported?
The entries include Linux, Windows, macOS, self-hosted, API and web deployments. Use each SDK's platform fields when evaluating it.
Which factors should I weigh besides price?
Evaluate PDF operations, platform support, language coverage, deployment model, annotation tools and commercial licence terms.
Are paid starting prices listed?
Examples include Apryse SDK from $1,500 per year, Aspose.PDF from $1,679 and Datalogics Adobe PDF Library from $5,999 per year.
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