Blurb’s issue with dimensions for softcover
After three days of trying to make a cover for my 5am I finally succeed it! The problem is that their instructions are false. You have a good pdf how to make a soft cover page and then you come to book size calculator and that calculator was telling me that for 144 pages, standard paper, softcover my dimensions for coverpage should be:
Cover Specifications Centimeters
Final exported PDF/X3 should measure (w x h) 35.806 x 17.462
But when I uploaded the message appeared:
For a Square 7×7 inches (18×18 cm) book we are expecting a PDF that is: 992 x 495 points, or 13.778 x 6.875 inches, or 34.995 x 17.462 centimeters
The PDF that you uploaded is: 1015 x 495 points, or 14.097 x 6.875 inches, or 35.806 x 17.462 centimeters
I tried everything and nothing worked. I uploaded 16 versions in three days. Then I decided that I’ll stop messing around with document preferences, trim, bleed, spine and other marks, and I’ll deliver a coverpage of exact measures that error was asking me. I made a pdf, opened it in photoshop (bleed box) and see what size it was. Then I changed the document settings in Indesign. I didn’t wonder why 5 mm change in Indesign is not 5mm change in pdf, but I was just correcting numbers so on the end I had 34.995 cm and PDF was accepted for printing.
I waste a lot of time, but on the end I trained my determination to publish the book in softcovers. It costs €18,95 + €5,37 shipping. This is only Blurb’s production cost and only 18 / 20 copies are available under this price. Click on the book above for more info.