Preflighting and Packaging InDesign Files
Sooner or later, you will discover that sending an InDesign file to another person or vendor is a bit more complicated than simply emailing the file. You must provide the InDesign document along with all of its associated images and fonts. Otherwise, the recipient won’t be able to do much beyond opening the InDesign file.
InDesign has two great tools that work in tandem with each other: Preflight Panel and Package. The Preflight Panel alerts you about any prepress issues in the file. If you forget to look at the panel, the Package tool will remind you about the problems and prompt you to fix them. The Package tool collects copies of everything into one folder: the InDesign file, linked graphics, and fonts. You can send that folder to whoever needs it and they’ll be able to view, edit, and/or print the InDesign file.