What size is a 6×9-inch book?
At FormatBookForPrint.com, you choose the book’s trim size. When uploading your book for publication on Amazon KDP or IngramSpark, you must enter the same "trim size" in the submission form that you used when laying out your print-ready PDF.
"Trim size" refers to the final dimensions of the book after it has been cut - the size you see on bookstore shelves. It is not the same as the dimensions of a Word document or the PDF file you view on your screen. We explain the details here. In the United States, the most popular trim size for printed books is 6×9 inches. Other common formats include pocket-sized, "digest" size, square, or smaller dimensions - often used for poetry collections, for example. Amazon KDP’s support guides state clearly that the file dimensions must match the dimensions specified when setting up the title. If you upload a 6×9-inch file but specify 5.5×8.5 inches in the submission form, the file will not fit. Similarly, if you create a design in Canva using only an "approximate" proportion, it will be incorrect, and your layout will be rejected.
On Path A and Path B - where we prepare books for print using text from Word, or from Canva designs, or PDFs created with other graphic design software - we offer the following trim sizes: 6×9, 5.5×8.5, 5×8, 4×6, 8.5×11, and 8.5×8.5 inches. Our Path C service specializes in art albums, large children’s books, and illustrated works featuring full-page images – and offers larger formats, including 7×10, 8×10, square, and landscape options, as well as extra large-format photo books and art portfolios measuring up to 11×13 inches. Once you make your selection, our "factory" generates your book’s PDF print layout with pinpoint precision. Don’t just “eyeball” it when cropping a rectangle in Canva or Photoshop to get something that looks roughly right.
If "bleed" is required for your images, the file is made slightly larger than the final trim size - extending about 0.125 inches (approx. 3 mm) beyond the edges - to ensure that the printer’s cutting blade doesn’t leave an unsightly white border. The "book" size remains the final trim size - the extra space is a "sacrifice" made for the sake of aesthetics. If your book requires this, simply check the "bleed" box in the manuscript Editing section, and the "factory" will automatically account for it during the book’s layout process.
If, after formatting your book using Paths A, B, or C, you decide to design the cover via Path D, you will use the same trim size. The PDF layout for the cover includes the back cover, the spine, and the front cover. For a hardcover book, it also includes additional space for the board, the hinge, and the wrap. The spine width is calculated based on the actual number of pages in your book’s final layout and the type of paper used. Therefore, if you didn’t format your book here, you should first upload your interior file (in PDF format) to Path B “to take the measurements” and the system will then calculate the print specifications and automatically forward them to Path D, where you can create your book cover and download for free an RGB cover template. Do not simply download a 6×9 book cover template from a random blog online - the actual spine width for your book will not match the one in that blog. The correct spine width is a very specific figure that can only be determined once your book’s interior layout is finalized.
Personally, I always start by checking which sizes are supported by the printer I intend to use. Amazon KDP has its own list, IngramSpark has another, and a local print shop might offer its own set of options. I then choose a size that is already supported within Paths A, B, or C of this "book layout factory." I generate a preview. If the block of text looks good, that’s the one. If I want more “breathing space,” I sometimes switch to a slightly larger trim size, but you can never decide that by looking at the manuscript in its initial Word format.
