Version history: https://www.pdf-xchange.com/product/pdf-xchange-editor/history
v10.8.5.410:
https://downloads.pdf-xchange.com/10.8.5.410/EditorV10.x64.msi
https://downloads.pdf-xchange.com/10.8.5.410/PDFXEdit10_Portable_x64.zip
https://downloads.pdf-xchange.com/10.8.5.410/PDFXEdit10_Portable_x86.zip
https://downloads.pdf-xchange.com/10.8.5.410/EditorV10.ARM64.msi