Added
- Self-installing EXE. Install or Run dialog on first launch. Installs per-user to %LOCALAPPDATA%\Programs\KillerPDF\ (no UAC), creates Start Menu shortcut, registers as PDF file handler, adds uninstall entry to Add/Remove Programs.
- Command-line file argument support so file associations work.
- Password-protected PDF support. Prompts for password instead of erroring. Decrypted copy held in temp for the session.
- Save Flattened PDF (toolbar photo icon). Rasterizes every page at 150 DPI via PDFium into a fully uneditable document. Annotations burned in before flattening.