Saving a PDF code to a ZIp mode introducing a Password using VBE

I Need to save some TXT files to PDF and in the sequence I need to save it as Zip code and input a password to send it to customers,as I have do to it to around 30 files every day, I would like to use a VBE code to save time, does anybody knows a code that could do it ? Note: Password can be the same to all files.