Document Protection Checker

In document-driven workflows such as claims processing, onboarding, or regulatory submissions, uploaded files like PDFs and ZIPs may be password-protected or have restricted permissions (e.g., copying, printing). These protections can interrupt automated processing and lead to failed extractions or user frustration.

Objective: To automatically detect password-protected or permission-restricted PDFs and password-protected ZIP files during document intake in Appian, enabling proactive handling before further processing.

Functional Flow:

1. When a user uploads a document or a file is received via an integration (API/email), the custom Appian plugin function is triggered.

2. The function checks:

• If a PDF is password protected or has permission restrictions.

• If a ZIP file is password protected.

3. Based on the result:

• Flag the file and prevent further processing if protected.

• Allow processing to continue if the file is unprotected.

4. The plugin can log incidents or notify users/admins for follow-up if necessary.

Functions

isPDFPasswordProtected – Detects whether the PDF file is protected by a password.

isPDFPermissionProtected – Detects whether the PDF file has any permission restrictions (e.g., printing, copying, editing).

isZIPPasswordProtected – Detects whether the ZIP file is protected by a password.

Security vulnerability fixes