what is adobe acrobat distiller used for

The programs Adobe Acrobat XI Pro, Adobe Acrobat XI Standard and Acrobat XI Pro have been observed as installing specific variations of acrotray.exe. The file is a digitally signed and issued to Adobe Systems by VeriSign. During installation, a run registry key for all users is added that will cause the program to run each time any user logs on to Windows. acrotray.exe is run as a standard windows process with the logged in user's account privileges. There are 18 versions of acrotray.exe in the wild, the latest version being 9.5.5.316'. axe8sharedexpat.dll (AXE8SharedExpat 3-13:03:03 by Adobe Systems).bibutils.dll (BIBUtils 7-19:07:31 by Adobe Systems).adobexmp.dll (Adobe XMP Core 3-13:03:03 by Adobe Systems).acroiefavclient.dll (Adobe IE plugin by Adobe Systems).adberdr1011_en_us.exe (Adobe Self Extractor by Adobe Systems).Adobe AIR Application Installer.exe (Adobe AIR by Adobe Systems Incorporated).contextmenushim.dll (Adobe Acrobat Elements by Adobe Systems).

pdffilter.dll (Adobe PDF IFilter by Adobe Systems).

shockwave_installer_slim.exe (Adobe Shockwave Player by Adobe Systems Incorporated).

airappinstaller.exe (Adobe AIR by Adobe Systems Incorporated).

adist64.dll (Adobe PDF by Adobe Systems).npswf32.dll (Shockwave Flash by Adobe Systems).axsle.dll (AXSLE 3-13:03:03 by Adobe Systems).adobe air.dll (Adobe AIR 1.1 by Adobe Systems Incorporated).pdfmword.dll (Acrobat PDFMaker by Adobe Systems).sangam.dll (Adobe India Sangam Core Code 6-20:10:24 by Adobe Systems).jp2klib.dll (JP2KLib 3-16:07:45 by Adobe Systems).adobepdfl.dll (PDFL 6-03:36:01 by Adobe Systems).adberdr70_hun_full.exe (Netopsystems FEAD 2.3 Optimizer(C) by Adobe Systems).aduigp.dll (Adobe Acrobat PScript Plug-in for Acrobat Distiller Printer by Adobe Systems).illustrator.exe (Adobe Illustrator CS5 by Adobe Systems Incorporated).aires.dll (Adobe Illustrator CS5 by Adobe Systems Incorporated).cooltype.dll (CoolType 7-05:36:00 by Adobe Systems).acrotray.exe (AcroTray - Adobe Acrobat Distiller helper application.

What is adobe acrobat distiller used for