Over the last few days I’ve been making a small but useful web-app for authors who self-publish their books: a cover size calculator.
Whenever it comes to making the cover file for a book, you have to calculate the size of the cover, based on the page size of the book, the paper thickness, and the number of pages in the book. It’s not a difficult calculation, but it can be an annoying one – I often find that I’m using measurements in lots of different units, and I always want to calculate the positions of the vertical and horizontal guides at the same time, to use in Photoshop, so that I can get the positions of page elements on the cover right. So to make the calculation less fiddly, I made this small web-app. You can see and use the app here: http://www.benjamintmilnes.com/cover-size-calculator/
It doesn’t display well on small screens (phone screens) – there are just too many things that have to go onto the screen. It’s intended to be used on desktop computers.
I believe it’s all working correctly, but as usual with any kind of programming project, fixes and improvements will be done incrementally over time.