Linearization (Fast Web View)

Linearization, also called Fast Web View, is a way of reorganizing a PDF so it can start displaying before the whole file has downloaded. A normal PDF often needs to load completely before the first page appears; a linearized one is structured so page one shows up almost immediately.

The trick is in the layout of the file. A linearized PDF puts the data for the first page right at the front and adds a hint structure that tells the viewer where everything else lives. So when someone opens a 200-page document over a slow connection, they see page one straight away and can jump to other pages while the rest streams in.

This matters most for large PDFs served over the web. If readers are opening your documents in a browser, linearization makes them feel fast and responsive instead of leaving people staring at a blank screen.