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I am new to editing software so I hope someone can help me. I am generating enormous files as I try to edit my work in Affinity Photo. Some files are hundreds of megabytes and one file has reached 2.3 gigabytes in size. I have been creating layers, adjustment layers and generally experimenting some of the time. But I have also been deleting layers and cleaning up as I went. I thought this would help to contain the file sizes. I read online somewhere that the history channel can contribute to this? Can I turn this off permanently? My question is 1. Why am I generating such huge files and how can I avoid this? 2. How can I reduce the file sizes to manageable proportions- bearing in mind that I have spent a lot of work on some of them and I don't want to do this all over again.I intend printing these files via an online printing firm. 3. Why is there no comprehensive book in English when there seems to be a German equivalent? If there is anyone who can point me in the right direction I would be very grateful. I've tried to upload some photos for members to view but both uploads have failed -probably due to the huge file size!