Private & local: Files never leave your browser. Pick a mode and compress. Mixed (keep text) keeps vector/text pages as-is and only rasterizes image-heavy pages.
Rasterized pages use DPI × JPEG quality. Presets: Extreme ≈ 96dpi×0.55, Recommended ≈ 144dpi×0.75, Less ≈ 200dpi×0.90. Mixed uses 144dpi×0.75 (rasterized pages only).
