Dedoimedo published Batch image processing in GIMP ... with BIMP
A quote from the article:
As John Lennon once sang: Image all the photos, being processed up in batch. Imagine an article and guide introducing BIMP, a batch image manipulation plugin for GIMP, including installation and setup against GIMP versions 2.8 and 2.10, workflow, preset and general procedures, examples, and more. Imagine no more. Read.Batch image processing in GIMP ... with BIMP