Pages
Layers
Spine —
Drop artwork to place it
100%
Design the cover of a perfect-bound book — back, spine and front with bleed, safe areas and hinge creases — with the spine width taken from the book itself, then export the print PDF, a proof and the DC crease job.
This online edition is a demonstration. Everything works, and your files never leave your computer — they are read and built in the browser. Saved PDFs and images carry a DEMO mark, XML and DXF files a DEMO note, and every file name ends in “Demo”. The licensed ImposeIQ Suite produces unmarked output.
Installed system fonts and saving straight into your output folder need the desktop Suite; the standard fonts and any font file you add work here, and each file downloads. Settings are kept in this browser only.
Duplo® and the DC and DSM product names are trademarks of Duplo Corporation and Duplo USA Corporation. All other names are the property of their owners and are used only to identify the equipment the software works with; no endorsement is implied.
PDF.js (Apache 2.0, © Mozilla Foundation and contributors) and pdf-lib (MIT, © Andrew Dillon), fontkit (MIT, © Devon Govett), UTIF.js (MIT, © Photopea) and bwip-js (MIT, © Mark Warren). Our thanks to their authors.