You can purchase two Editions of VueScan - Standard or Professional - but there is only one file to download. After you purchase and enter a serial number, the Standard Edition or Professional Edition features are enabled.
VueScan changes nothing on your system, installs nothing in your operating system and all other scanner software will continue to function. You can purchase VueScan at any time and instantly get a serial number that disables image watermarking. 2b1af7f3a8