I think all you need to do is:
Open the file, select Image --> Canvas Size and reduce to the desired width for the left pane with the "Anchor" set to the left arrow, save the result as a new file.
Open the file, select Image --> Canvas Size and reduce to the desired width for the right pane...
Hi all,
Been through all the helpful advice on unclogging print heads, and tried pretty much everything - 99% isopropanol, Windex, hot distilled water, syringe sucking and blowing, even took off the nozzle piece be removing the screws and tilting the assembly back to give clear passage through...