QUICK ANSWERStart with the tool that matches your immediate input.
Open PDF Accessibility Checker first when its stated purpose matches the result you need now. Use PDF Font Inspector only when it solves a separate next task.
This guide is for students, office teams, administrators, and document-heavy workflows. Start with PDF Accessibility Checker when your immediate task is to inspect your input with the PDF Accessibility Checker and review a clear, useful report. Move to PDF Font Inspector only when you also need to inspect your input with the PDF Font Inspector and review a clear, useful report.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether PDF Font Inspector solves a genuinely different next step.
Both tools sit in PDF Tools, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.