A PDF printer is a virtual printer which you can use like any other printer. The difference to a normal printer is that a PDF printer creates PDF files. You do not print on physical paper. The PDF printer prints the contents of the source file into a PDF file.
In this way, you can create a PDF version from any file which can be printed. Just open the file with a reader, click the "print" button, choose the virtual PDF printer and click "print". If you have a reader for the EML file, and if the reader can print the file, then you can convert the file to a PDF.
The FREE and easy to use PDF24 PDF printer can be downloaded from this page. Just click on the "download" button to the right of this article to download the PDF24 Creator. Install this software. After the installation you will have a new printer device registered in your Windows system which you can use to create a PDF file from your .eml file or to convert any other printable file to a PDF.
PDF24 provides several online tools which can be used to create PDF files. Supported files are added on a rolling basis and maybe the file type EML is also already supported. The converter service has different interfaces. Two of them are the following:
The PDF24 Online PDF Converter supports a lot of files which can be converted to PDF. Simply select your EML file from which you would like to have a PDF version, click the "convert" button and you will get a PDF version of your file.
There is also the PDF24 E-Mail PDF Converter which can be used to convert files to PDF. Simply send an email to the E-Mail PDF converter service, attach your EML file to that email, and a few seconds later you will get a PDF file back.