Feature: Embedded JavaScript extraction (PDF)

[coderabbitai]

Overview

Extract embedded JavaScript code from PDF documents for security analysis.

Parent Epic

Part of #91 - Document & Office Format Awareness

Description

PDFs can contain JavaScript in various locations (actions, annotations, form fields). Extract this code for analysis.

Implementation Details

• Parse JavaScript actions (/JS, /JavaScript)
• Extract from document-level scripts
• Extract from page actions (OpenAction)
• Extract from form field actions
• Handle both string and stream JavaScript

String Sources

• JavaScript code
• Function names
• Variable names
• String literals within JavaScript
• API calls (app., doc., etc.)

Acceptance Criteria

• Extract document-level JavaScript
• Extract page-level JavaScript
• Extract form field scripts
• Handle obfuscated JavaScript
• Pretty-print JavaScript output
• Tests with JS-enabled PDFs

Security Note

This is important for malware analysis as malicious PDFs often contain JavaScript exploits.

Related

Project: #76

[traycerai]

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