PDF Security SDK

Whether you’re more focused on confidentiality or content fidelity, document security is a key concern for any content producer. The PDF format is compatible with security measures that seek to address both of these areas. As an application developer working with PDF, you will likely be expected to support features that control who can open, edit or extract content from PDF documents.

Quick PDF Library allows you to build flexible PDF security-based functionality into your applications, spanning a range of low- to high-end encryption technology. Quick PDF Library now supports digital signature technology. This means that, when a document is created, it can be digitally signed or certified. If it is later changed, the signature is invalidated, making it clear to any future readers that the resulting document has not been approved.

Feature Overview

  • Digitally sign PDFs (digital signatures)
  • Encrypt and decrypt PDFs
  • Encrypt PDFs with a fingerprint
  • Encryption level: 40-bit RC4, 128-bit RC4 and 128-bit AES
  • Control document permissions (allowing printing, copying, modification, etc)
  • Set or remove open passwords

Function Groups Capabilities

Comprising 31 functions within the group, Quick PDF Library is capable of adding security from CheckPassword all the way to SignFile.

Delve deeper into the complete set of PDF Security and Signatures functions that Quick PDF Library can build into your application. The documentation includes examples in several programming languages for each function to help you get started.

Examples of Quick PDF Library being used for Security

More examples of practical applications can be found in the Knowledge Base.