EML files can be converted in bulk using an automated software without losing the attachments. The application should be simple to use for all types of users. The majority of email clients, including Thunderbird, Apple Mail, Windows Live Mail, Entourage, Outlook Express, and others support the program. The program provides several sophisticated options for converting EML attachments to PDF. No matter how many files users wish to convert, the program has no file size limitations. compatible with every version of Mac OS and Windows. Also look for a tool that give 24*7 customer support and a free demo feature to convert a few .eml files.