PdfViewer is a WinCC Unified Custom Web Control that evolved into a media browser and viewer for PDFs, images, audio, and video, with a local helper backend.

• deploy_cwc.bat: builds and copies the CWC ZIP to the WinCC CustomControls folder
• {A1B7F3B4-FD9F-40A0-80FC-69C20AE48E4B}/: CWC manifest and frontend assets
• pdf_local_server.ps1: local media helper
• start_media_local_server.bat: starts the active media helper
• start_pdf_local_server.bat: compatibility wrapper
• _ModuleTemplate_extract/: active module packaging source
• _ModuleTemplate_fresh/: clean template-derived reference copy
• MediaModule.zip: built module package

• browses files from a configured root folder
• previews PDF, image, audio, and video content
• restores the last selected item when configured
• supports custom PDF viewing behavior and navigation state
• serves local files through a localhost helper

1. Start the helper with start_media_local_server.bat
2. Deploy the CWC with deploy_cwc.bat
3. Reload the WinCC screen or reimport the control if needed

• local media access depends on the localhost helper being active
• module artifacts are built from the template extract folder
• extra template ZIPs and build outputs are intentionally ignored by git