How are you saving it? I see two options:
1. File>Save As and choose PDF as the format.
2. From the Print dialog box, click PDF and then select Save as PDF.
Whichever option you are using, try the other one.
EDIT: I saw a third option: From the Print dialog box, click Preview. The document will now open in Preview. From the File menu, choose Save or Save As and go from there.
Edited by jchuzi (03/16/13 04:43 AM)
OS 10.14.5, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365