Adobe PDF Printer is Saving as .ps instead of .pdf

Hello,

I have this issue for print using Adobe PDF from Adobe Acrobat Pro. Usually I use this function and it will lead me to "Save As" the document and final product of file .pdf.

However, I encounter the issue where the Adobe PDF print was saving the file as .ps (postscript) instead of .pdf. I have to run Adobe Distiller for so many times and it's not convenience for me.

Could anybody please help? I read some article in adobe help that stated "In many authoring applications, you can use the Print command with the Adobe PDF printer to convert your file to PDF. Your source document is converted to PostScript and fed directly to Distiller for conversion to PDF, without manually starting Distiller. The current Distiller preference settings and Adobe PDF settings are used to convert the file."

Really appreciated if I could go back to initial condition when print as pdf will give me .pdf file instead of .ps.

Thank you !