Fonts are actually code, backed by specific font files stored on your computer or in an online repository. If we don’t have access to the fonts you’ve used, your file will encounter errors when we open it, and prevent us from preparing your file for the press. Converting your text to outlines changes your text to artwork (shapes) and removes all font information from the file. This means the text is no longer editable, but it also means we avoid font errors and can print your text exactly as intended.
If you’ve properly converted all the text in the document to outlines, there should no longer be any font information in the file. In Adobe Illustrator and InDesign, you can confirm this by going to the Type menu and selecting Find Font…
You should see a resulting window that says there are zero (0) fonts in your document. If you get a list of one or more fonts, there is un-outlined text that needs to be addressed.
This document still shows there are fonts in use.
NO fonts in use.