Removing last page from multiple files with auto save

Hi

I use this code to remove the last page from multiple files but I have one problem : I have more than 1000 files and I can't press enter every time. When I run this code using action wizard I have to press Enter for each file.

Code : this.deletePages(this.numPages-1);

Is there anyway to force Acrobat to save the new file automatically ???

Thanks