This question is really for @Thom Pyle regarding correct way to post an image in either a Jpeg or pdf format. I generally take photos with my iPhone and either post directly onto the forum and add my photo via the iphone or airdrop to the laptop. Do I need to do anything to these photos so that they are the correct format? On occasion my images do appear very large and I am wondering if this is the incorrect format. Apologies in advance .... as I am not sure if how/ should convert the saved photo on the iphone. Cheers