Skip to content

PDF Structure Inspector

Walks the object tree, listing fonts, colour spaces, JavaScript, attachments and per-page byte weight.

🔒 Runs entirely in your browserinspectdebugstructurefonts

The object tree is walked in this tab. Nothing about the file — not its structure, not its fonts, not its size — is sent anywhere.

Drop a PDF to take apart

Objects, fonts, colour spaces, images and where the bytes went.

Feed it from

Next

These accept what this tool produces, so the result can go straight in.