How can I make a PDF document smaller? Here's my problem, I have a PDF document 583KB, and I want to make it under 500KB so I can upload it. What should I do?
Open the PDF in Preview.
Go to File → Save As… (⌥⇧⌘S)
Select Reduce File Size as the Quartz Filter




Apple recommends this method in the KB article Mac OS X 10.6: Compressing a PDF file.