Proposed changes

Fixes #2063

• Adds support for exporting nuclei scan results as a PDF

• New flag: --pdf-export / -pe

• Follows the existing exporter pattern (same approach as JSON/Markdown)

• Uses gofpdf for generating PDFs

• PDF includes:

  • One summary page with findings grouped by severity
  • Separate pages for each finding
  • Color-coded severity levels

Example:

nuclei -u example.com -t templates/ -pe results.pdf

Proof

• Tested with DNS, SSL, and HTTP misconfiguration templates
• PDF output is multi-page and formatted correctly
• Verified binary data handling for SSL responses
• Existing tests still pass
• Build works with make build

Checklist

• Pull request is created against the [dev](https://github.com/projectdiscovery/nuclei/tree/dev) branch
• All checks passed (lint, unit/integration/regression tests etc.) with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

/claim #2063

Summary by CodeRabbit

Release Notes

• New Features
  • Added PDF export option (--pdf-export / -pe) to generate comprehensive PDF reports of security findings
  • PDF reports display findings summary, severity distribution breakdown, and detailed event information including template IDs, hosts, matched content, and color-coded severity headers
  • Configurable request/response data inclusion in PDF exports