i use LiveCycle ES:
1. Log in to LiveCycle Administration Console (http://[server]:[port]/adminui).
2. Select Services > Applications and Services > Service Management.
3. In the list of services, click ConvertAllFileTypesToPDF: 1.0.
4. On the Configure ConvertAllFileTypesToPDF page, click the Endpoints tab.
5. In the list, select WatchedFolder, and then click Add.
6. On the Add WatchedFolder Endpoint page, in the Name box, type Convert All File Types to PDF and, in the Description box, type To convert All file types to PDF.
7. In the Path box, type the path of the folder that input files will be taken from (C:/Adobe/WatchedFolder).
8. In the Operation Name box, select Invoke.
9. In the list under Input Parameter Mappings, select the inputDocument variable and, in the adjacent box, set its value to *.*.
10. In the list under Output Parameter Mappings, set the value of the Output PDF Document variable to /%F.pdf.
11. copy .doc (or .xls, .ppt, .txt)file to /input folder
12. output folder default set by LiveCycle ES, the /result, /failure