The latest version of the page scrolling PDF control for Delphi.
Andy's PdfiumLib core classes - PdfiumCore.pas and PdfiumLib.pas.
Note! PDFIUMCORE_PRINTER_ORIENTATION_FIX and PDFIUMCORE_PRINTER_COPIES_COLLATE_FIX defines require fixes in PdfiumCore.pas.
AlphaSkins (native) - https://www.alphaskins.com/