Recommend Linux software to scan multiple pages using sheet feeder?

gscan2pdf can do this. It's an excellent piece of software. It can clean up scans with unpaper and trigger OCR.

Xsane also supports this, in the main Xsane interface select Multipage (or Ctrl+M) instead of Viewer which is the default. It opens a new dialog titled "xsane multipage project". Specify location where you want images saved, click "Create Project". Go Back to the main Xsane interface and scan as you would normally do, at the end of every scan it adds something like image-000x to the "project" dialog. When done with your documents, simply click "Save multipage file".

gscan2pdf is a nice software too, however I prefer to scan the batches in Xsane (appears clearer) and the import the images with gscan2pdf which helps create smaller PDFs.