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PDFSecure is a completely stand-alone application and it does not include any dependencies on third-party components or software.
PDFSecure is based on PDF SDK , PDFTron's own core PDF programming technology. Our PDF SDK is a comprehensive developer library for PDF creation, manipulation and rendering, offered on a wide range of platforms and programming environments. If you require functionality for integration in your own applications beyond that which is provided as part of PDFSecure, or need more flexibility in implementing the required functionality, please contact a PDFTron representative .
The main distinction between the two components is that PDFSecure is a specialized tool for adding, removing, or changing security settings, whereas PDF SDK is a general purpose Software Development Toolkit (SDK) that can be used to implement any type of manipulation on PDF documents (including security changes) as well as other types of PDF functionality.
The advantage of PDFSecure is that it is very simple to use and that it doesn't require much experience with PDF format or general programming. At the same time PDFSecure does not include all of the features and options that are available in PDF SDK.
PDFSecure has a simple-to-use CLI that can be easily integrated into third-party client and server-based applications. The CLI is available as a plain executable and can be easily accessed from any programming language (including C#, VB.NET, C/C++, Java, VB6, Perl, Python, Ruby, Delphi, etc). For more information on PDFSecure, please contact a PDFTron representative at email@example.com.
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