When you send someone an InDesign file, be sure to send all linked graphics and necessary fonts along with the project file. Use the Package command to copy the InDesign (INDD) document, fonts used, and any linked graphics:
Choose File > Package.
In the Package dialog box, click Package.
In the dialog box that appears, enter a name and choose a location for the folder that InDesign creates to copy the packaged content. Set any options and click Package, then click OK.