SilentPrint is described as 'Windows batch printing solution. It enables documents to be automatically printed or converted to PDF'. There are four alternatives to SilentPrint for Windows. The best alternative is Print Conductor. It's not free, so if you're looking for a free alternative, you could try AcroTeX PDF Print Monitor. Other great apps like SilentPrint are Printstation (Paid) and Batch & Print Pro (Paid).