Most designers know that InDesign offers a find fonts feature to change fonts or locate missing fonts in your document. It’s located in the menubar under Type>Find Font… However most designers never go past the “Replace With” font feature.
The problem is if you have a document with numerous pages and lots of colorful imagery, even when InDesign highlights the missing font (or the one you want to substitute) it can be hard to see.
The simple way to find the pesky hidden font is to hit the More Info button in the Find Font dialog box. The dialog box will expand with a list of font statistics, at the bottom of which will tell you what page(s) the reticular font is on—even if it’s on the pasteboard.