Many Pathfinder 1e hardcovers are out of print. The Mythic Adventures hardcover sells for $100+ on eBay. PDFs keep these rules accessible to the public without price gouging.
Paizo regularly partners with Humble Bundle to offer the entire 1e library for as little as $25-$35. These bundles include: pathfinder 1e pdfs
Before we dive into where to find these files, let’s address why you want them. Many Pathfinder 1e hardcovers are out of print
The resurgence of PF1e in 2024-2025 is largely driven by VTTs. Here is how PDFs integrate. pathfinder 1e pdfs