In general Imagemagick or even if you prefer a graphical interface Xnview (www.xnview.com) seems more adapt for batch
Anyway in this case a Gimp plugin called DBP (David Batch Processor) should solve > Date: Sun, 15 Nov 2009 14:38:24 -0500 > From: Claudia <picsbyclau...@verizon.net> > Subject: [Gimp-user] batch changes > To: gimp-user@lists.XCF.Berkeley.EDU > Message-ID: <966a947a-0d2d-4524-ae6e-e40ebcfcb...@verizon.net> > Content-Type: text/plain; charset=US-ASCII; format=flowed; > delsp=yes > > I have folders containing varying numbers of photos or > varying sizes. > I need to make thumbnails of all photos: all to have a of > height 150 > pixels, widths will vary, GIMP to scale width to the > height. This is > time consuming to do one at time. How can GIMP do this in > batches? > Thank you for you time and assistance. > Claudia > > > ------------------------------ > > _______________________________________________ > Gimp-user mailing list > Gimp-user@lists.XCF.Berkeley.EDU > https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user > > > End of Gimp-user Digest, Vol 86, Issue 15 > ***************************************** > _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user