To convert EML files into PDF files of any offline client such as thunderbird or outlook you can use Advik EML to PDF Converter program. This tool allows you to convert single and bulk EML files. This gives you permission to convert your files in bulk or individually. It do not harm any EML files during converion. In my opinion, this tool is a good option for converting your EML files. I recommend using it to reap its benefits. You can also use it to convert PST files in addition to EML files.
