Background
I asked about this yesterday in the context of creating outline text: a 416 page type specimen book with 3000 fonts, had 30-50 fonts where the numbers and basic punctuation failed to print (there were small rectangles instead). . . . thank you to everyone who tried to help yesterday.
CreateSpace (an Amazon company) was the printer. They said it was easy to fix by re-embedding the fonts. The fixed proof printed perfectly, but I had to make some small edits--about 6 typos. The print-ready file was a PDF/X-1a file. (I asked what they meant by "re-embed" and they would not tell me.)
The corrected file (also a PDF/X-1a) was uploaded, with a note saying they needed to re-embed the fonts. But this time CreateSpace said the file was "too complex to print." I argued with them a bit, and they finally fixed the file. The proof printed perfectly. This time, when I asked what they had done, they said they had to convert the text to outline: facing a third correction, I want to do as much as I can, hence my post yesterday.
Question
How should I prepare the latest corrected PDF from an InDesign file (authored in InDesign, if that matters) that would present the least problems printing? (I am working in Creative Suite CS 6)
CreateSpace will not tell anyone what presses they use (although I know that they use Indigo 5500 presses, at least at one time), what profiles, what RIP . . . they will give out no technical information.
Walton