Closing an exported file

I have a need to output several .pdf docs in succession. I’d really rather not have the LL progress box flicker madly, so I would like to do:
LLPrintWithBoxStart
Export File1.pdf
Close File1.pdf
Export File2.pdf
Close File2.pdf
LLPrintEnd

Everything works well except that I can’t close the file and restart with a new filename
Using LL 12. Suggestions, please

Jim,

Try LlPrintStart instead of LlPrintWithBoxStart to prevent the box from threatening… works very well and is invisible then.