How IDImposer Works
When you click the Impose button, IDImposer:
- first creates a <docName>.sc folder, next to the source document. This allows IDImposer to store sticky settings files and frozen pages without disturbing the input document.
- Then IDImposer ‘freezes’ the pages of the input ‘reader page’, so that things such as auto page numbering and master pages don’t get messed up when IDImposer starts rearranging pages onto ‘sheets’. The ‘freezing’ is accomplished by exporting the input document to one or more PDF files. (Your original, input indd file is not altered in any way.)
- IDImposer then creates an new, larger-dimensioned, empty InDesign document,
- and figures out where to Place the frozen pages to accomplish the imposition.
- IDImposer Places all the frozen pages into the new InDesign document.
- Finally, IDImposer optionally adds crop marks / trim marks and other printer marks.
Thus, the output of IDImposer is a new 1-up, 2-up, or more-up InDesign document. This allows you to inspect the imposed result before either sending it to a printer or imagesetter or exporting a PDF file of the job. And, since the output is an InDesign Document, you can easily add slugs, additional color bars, and other custom marks in InDesign before printing or exporting the imposed file to PDF.