Angus Johnson’s small, carefully maintained catalog addresses two perennial Windows needs: deep inspection of executable files and lightweight, script-free manipulation of PDF documents. Resource Hacker, the longer-standing title, is a low-level resource editor that opens 32- and 64-bit PE files (exe, dll, scr, CPL, OCX, etc.) and exposes every icon, bitmap, menu, dialog, cursor, string table, version stamp or manifest nested inside. Developers use it to swap graphics, localize text, correct version information, patch manifests for UAC or DPI awareness, or simply to learn how commercial applications are bolted together; hobbyists use it to customize the look of open-source utilities or to extract hidden assets from legacy games. PDFTK Builder wraps the venerable PDFtk command-line engine in a drag-and-drop GUI, giving everyday users a way to merge contracts, split chapters, rotate mis-scanned pages, apply letterhead or watermark overlays, and paginate reports without launching a full office suite. Together the two tools form a minimalist toolkit for anyone who routinely needs to open the hood on Windows binaries or tidy PDF workflows without installing heavyweight IDEs or creative suites. Angus Johnson’s software is available for free on get.nero.com, with downloads delivered through trusted Windows package sources such as winget, always pulling the latest release and supporting batch installation of multiple applications.