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Head-to-head · PDF SDKs

Apache PDFBox vs Syncfusion PDF Library

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Apache PDFBox #6 in PDF SDKs 8.5/10 Free plan Free plan✓ 2 of 2 features Visit Apache PDFBox
Syncfusion PDF Library #8 in PDF SDKs 8.3/10 Free plan · 30-day trial Free planFree trial✓ 2 of 2 features Visit Syncfusion

Apache PDFBox leads on 0 checks, Syncfusion PDF Library on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreApache PDFBox · 8.5/10
  • Free planboth
  • Free trialonly Syncfusion PDF Library

Apache PDFBox scores higher on our rubric for pdf sdks: 8.5 against 8.3 out of 10; our editors rank them #6 and #8.

Apache PDFBox is the better fit for java teams seeking a free general PDF SDK. Syncfusion PDF Library is the better fit for budget-conscious .NET teams.

  • Apache PDFBox fits best

    Java teams seeking a free general PDF SDK

  • Syncfusion PDF Library fits best

    Budget-conscious .NET teams

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Side by side

Feature Apache PDFBox 8.5/10 Visit ↗ Syncfusion PDF Library 8.3/10 Visit ↗
At a glance
Editor score 8.5 8.3
Ranking #6 in PDF SDKs #8 in PDF SDKs
Best for Java teams seeking a free general PDF SDK Budget-conscious .NET teams
Pricing model Free Free plan + paid
Starting price Free plan $1,199/user/yr
Free plan ✓ ✓
Free trial — 30 days
Deployment Self-hosted Cloud, Desktop, Mobile
Support Community, Docs Email, Live chat, Phone, Tickets, Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Apache PDFBox 2/2 · Syncfusion PDF Library 2/2
Annotation tools ✓ ✓
Commercial license ✓ ✓
Specs
PDF operations Creation, manipulation, text extraction, image extraction, rendering, merging, splitting, form filling, PDF/A validation, printing, encryption, decryption, and digital signing. Creation, reading, editing, rendering, forms, annotations, conversion, OCR, extraction, compression, merging, splitting, redaction, encryption, digital signatures, and PDF standards compliance
Supported platforms Java runtime; PDFBox 3.0.x requires Java 8 or later. Windows Forms, WPF, ASP.NET Web Forms, ASP.NET MVC, ASP.NET Core, Blazor, UWP, WinUI, .NET MAUI, Flutter, Unity, Linux, macOS, Azure, AWS, and GCP
Language coverage Java C#
Deployment model Not checked yet Server-side
Our review
Pros
  • Covers creation, extraction, forms, rendering, signing, encryption, and PDF/A validation
  • Open-source distribution under the Apache License 2.0
  • Supports PDF merging, splitting, printing, and image rendering
  • Free Community License permits commercial application use for eligible users
  • Covers forms, OCR, conversion, signatures, redaction, and PDF standards
  • Supports web, desktop, mobile, cloud, and server-side .NET applications
Cons
  • Java is the only listed programming language
  • PDFBox 3.0.x requires Java 8 or later
  • Deployment and operating-system coverage are not explicitly classified
  • Community License eligibility limits who can use the free tier
  • Paid access starts at $1,199 per developer annually
  • Its language coverage is centered on C# and .NET applications
Our verdict

Apache PDFBox is an open-source Java library and set of standalone Java applications for working with PDF documents. It is suited to Java teams that need a general-purpose SDK for creating PDFs, manipulating existing files, extracting…

Read the review →

Syncfusion PDF Library is a programmatic PDF SDK for developers building document workflows in .NET applications. It covers web, desktop, mobile, cloud, and server-side use cases, including ASP.NET Core, Blazor, Windows Forms, WPF, WinUI,…

Read the review →
  1. Apache PDFBoxPDF SDKs 8.5Free plan
  2. Syncfusion PDF LibraryPDF SDKs 8.3Free plan · 30-day trial

Strengths and trade-offs

  • Apache PDFBox — where it wins

    • Covers creation, extraction, forms, rendering, signing, encryption, and PDF/A validation
    • Open-source distribution under the Apache License 2.0
    • Supports PDF merging, splitting, printing, and image rendering

    Where it doesn't

    • Java is the only listed programming language
    • PDFBox 3.0.x requires Java 8 or later
    • Deployment and operating-system coverage are not explicitly classified

  • Syncfusion PDF Library — where it wins

    • Free Community License permits commercial application use for eligible users
    • Covers forms, OCR, conversion, signatures, redaction, and PDF standards
    • Supports web, desktop, mobile, cloud, and server-side .NET applications

    Where it doesn't

    • Community License eligibility limits who can use the free tier
    • Paid access starts at $1,199 per developer annually
    • Its language coverage is centered on C# and .NET applications
  • Apache PDFBox8.5/10 · Free plan

    A broad, free PDF toolkit for Java teams that need core document operations without paid plans.

    Visit Apache PDFBoxFull verdict →
  • Syncfusion PDF Library8.3/10 · Free plan · 30-day trial

    A broad PDF toolkit for .NET teams, with a free eligibility-based license and paid automation features.

    Visit SyncfusionFull verdict →

More comparisons

All PDF SDKs comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update