I know it isn’t always popular when I tell users that there are some things they shouldn’t do in CorelDRAW. High up on my list is trying to create long documents. Back in May, I told you to break up long documents. A side effect of some long documents is massive files and I warned you about that back in July. For users who insist on creating these types of projects in CorelDRAW, there is an alternative that will give you a much better chance at success.
Instead of creating everything in a single file, limit each file to 8-10 pages or less. This keeps files small and fast. They are also less likely to get corrupted. Should one of them get corrupted, you only lose that section and not the entire document. Now for the cool feature. When you Publish to PDF, make sure all of the files are open. In the Publish to PDF dialog box, you can choose multiple documents as an option and your files can all be published to the same PDF file. Just make sure to name the files so their alphabetical order is the order you want them to appear in the PDF. The exact same thing can be done in the Print dialog box if you want them all in the same print stream.