How do I install VueScan on Linux from the downloaded archive?

On some newer Debian-based systems, scanner access can be affected by `ippusbxd` or `ipp-usb`. Only remove those packages if the scanner is not detected and you know they are causing the conflict; they are not normally required just to install VueScan. A reboot may also apply the udev rule, although reloading the rules is usually enough.

If the computer is running Debian, Ubuntu, Mint, or another Debian-based distribution, using VueScan’s `.deb` package is likely much easier than installing from the tar archive. You can install it with `sudo apt install /full/path/to/vuex64-.deb`, replacing the path and filename with the package you downloaded. You can check the distribution with `cat /etc/os-release`. Fedora-based systems generally use the `.rpm` package instead.

You may not need VueScan at all unless you specifically need its features. `simple-scan` is free and often already available in the distribution’s software manager. Another alternative is NAPS2, which provides a Linux package and can be installed with `sudo apt install /path/to/package.deb`. VueScan may also require a paid license to remove watermarks.

The error is probably caused by a space in the filename. The file should be named `vuescan.svg`, not `vuescan. svg`. Also, the README text seems to have lost its line breaks. Run each command separately from the directory containing the extracted files, for example: `sudo cp vuescan.svg /usr/share/icons/hicolor/scalable/apps/`, `sudo cp vuescan.rul /lib/udev/rules.d/60-vuescan.rules`, and `sudo cp vuescan /usr/bin/`. Then run `sudo udevadm control --reload-rules`. Make sure the files actually exist by running `ls` first, and use `cd` to enter the directory where the archive was extracted.