When you want to review booklet or brochure spreads
It is a simple way to check how facing pages work together in a brochure, booklet, catalog, or scanned document.
When you want to share two pages side by side
Spread PDFs are useful for design reviews, proofing, and side-by-side reading when one page at a time does not show enough context.
When your PDF ends with an unpaired page
If the PDF has an odd number of pages, the final page is kept on its own so the output still feels consistent and easy to read.