Just talked to our IT about this issue when you click backwards and it takes you back to the home page. Although this is annoying, this cannot be fixed in the system but there is an easy way around it. When you click on the PDF to open it up (maximising it) you just need to click on the tiny grey banner and the little icon on the furthest right hand side with 4 arrows pointing either way (this means you’ve maximised the page to see it all) – instead of now clicking back, click the grey arrows (pointing either way) to minimise it and it will take you back to the recipes page. Just keep minimising and maximising each PDF (uses those 4 little arrows) and not clicking forward and back. I hope this makes sense.