From Usefulsoft LLC:
PrintGhost is a new generation virtual printer tool that provides additional options, combining several print jobs into one or enabling users to do poster printing (a unique feature not available in any virtual printers released to this date).
The primary objective of PrintGhost, as of any virtual printer, is creating virtual documents in TIFF, JPEG or BMP formats that can be e-mail, posted on the web or printed out. The advantage of the tool is that it saves ink and paper and makes paperless document processing a viable and affordable option even for small offices with a few employees.
The poster printing option available in PrintGhost makes it possible to take any document in A4 or other popular format and scale it up to a poster of any size. Likewise, the program can be used to take a large image and fit it into a single page.
Whereas other virtual printers tend to substitute real ones, PrintGhost acts as a bridge between the two, providing print job preview options for real printers. The program can "intercept" print jobs sent to real printers to give users more print options that are available in PrintGhost. After alterations are made, the document can be printed with a real printer or converted into an image.