Change default zoom level of PDF files
Solution 1:
Zoom is actually saved in the PDF file when it's written. What you want is the restore last view settings:
Restore Last View Settings When Reopening Documents Determines whether documents open automatically to the last viewed page within a work session.
It should be under Preferences as well.
Solution 2:
With Adobe, you can't just set the zoom to make it work, you should also set the screen resolution. This is easily done by executing the steps that you used above, and directly under the section for zoom and page layout, there should be another section that has resolution settings. Select the "Use System Setting" if it is not selected. It was not for me when I installed, but after I changed from the "Custom Setting" option, I had this problem eliminated.
In Foxit Reader, with the latest version (4.3.0.1110), if you go to
*Tools | Preferences (or hit Ctrl+K)
*Page Display
*Set Default Zoom to whatever
Exit and restart, I had no problems.