AzSDKPDF SDK for Windows

PDF library SDK

PDF SDK for Windows developers

Six focused ActiveX DLLs that add PDF encryption, decryption, split and merge, Word conversion, and TIFF/PDF imaging to Win32 and Win64 applications.

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  • No Adobe Acrobat
  • Royalty-free
  • Win32 & Win64
  • 18+ languages

The components

One SDK family, six PDF jobs

Use one component or combine several. The licensing model and API style are consistent across the line.

Capability map

Match the component to the workflow

ComponentWhat it does
PDF SecurityEncrypt, decrypt and apply permissions to PDF files from a single Windows component.View product
PDF EncryptAdd user and owner passwords plus permission controls to PDF files.View product
PDF DecryptRemove owner-password restrictions and unlock PDFs your app is allowed to process.View product
PDF Split MergeSplit, merge and rotate PDF files by page range from Windows applications.View product
PDF To WordConvert PDF files to editable Word (DOC) documents from Windows applications.View product
TIFF To PDFConvert TIFF, PDF and common image formats in both directions from Windows apps.View product

Need a combination or a custom build? Contact us.

Architecture

Why a DLL instead of a managed PDF library?

Many production Windows systems still run Win32 services, VB6 tools, Delphi applications and mixed .NET estates. A COM DLL fits those environments without a new runtime, a new deployment model, or a rewrite.

  • Call from existing desktop, server and scripting code.
  • Deploy a small installer instead of a framework.
  • Keep Acrobat out of server images and locked-down desktops.
  • Use the same component from 32-bit and 64-bit builds.

Engineering facts

Interface
COM / ActiveX
Dependency
None (no Acrobat)
Architecture
x86 and x64
Distribution
Royalty-free
Support
Email, 12–24 h
Currency
USD
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Tutorials

Encrypt a PDF in your language

Complete examples for the PDF Encrypt and PDF Security components.

C# How to encrypt PDF with C# Step-by-step C# example: load a PDF, set permissions and encrypt it with the AzSDK PDF Encrypt ActiveX DLL. Includes return codes and licensing notes. VB6 How to encrypt PDF with Visual Basic Visual Basic 6 example: password-protect a PDF and set printing, copying and editing permissions with the PDF Encrypt ActiveX DLL. Delphi How to encrypt PDF with Delphi Delphi example using CreateOleObject to encrypt PDFs, set permissions and decrypt them with the AzSDK PDF Encrypt ActiveX DLL. ASP How to encrypt PDF with ASP Classic ASP example: call the PDF Encrypt ActiveX DLL from IIS to protect PDF files server-side, including application-pool bitness notes. PHP How to encrypt PDF with PHP PHP on Windows example: use the COM extension to call the PDF Encrypt ActiveX DLL, set permissions and save a protected PDF.
All tutorials

FAQ

PDF SDK questions

What is a PDF SDK?
A PDF SDK is a set of libraries that let your application create, modify, protect or convert PDF files without automating a desktop PDF editor. AzSDK ships six focused components so you only deploy the capability you need.
Does the SDK work without Adobe Acrobat?
Yes. The components are standalone DLLs and do not require Acrobat or Reader on the target machine.
Which languages can call the PDF components?
Any COM-capable language: C#, VB.NET, VB6, Delphi, C++ Builder, Visual C++, ASP, ASP.NET, PHP, Python, Java, VBScript and others.
Can I redistribute the SDK with my application?
Yes. A valid license allows royalty-free distribution in an unlimited number of applications.
Are 64-bit applications supported?
Yes. Both 32-bit and 64-bit builds are available, and the components run in either process type.

Pick the component that fits the task.

Every product page includes features, API reference, pricing and a free trial.

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