You can gather the files you’ve used, including fonts and linked graphics, for easy handoff to a service provider. When you package a file, you create a folder that contains the InDesign document (or documents in a book file), any necessary fonts, linked graphics, text files, and a customized report. This report, which is saved as a text file, includes the information in the Printing Instructions dialog box; a list of all used fonts, links, and inks required to print the document; and print settings.
You don’t need to perform a final preflight check before packaging. InDesign performs an up-to-date preflight check. If problem areas are detected, a dialog box appears.
You can also give your service provider a composite PDF file made from your document or a PostScript file.