: Legacy versions like Nitro Pro 13 no longer receive security patches. Using an unpatched version leaves you vulnerable to known exploits, such as remote code execution flaws.
If you don’t have a license yet, consider these safe alternatives:
: For basic tasks, highly-rated free tools include PDFgear (which allows text editing) and PDF24 Creator.
: Nitro offers a 14-day free trial of their latest version, allowing you to test all premium features without risk.