When printing from Revit to Bluebeam, the sheets are automatically named numerically 1, 2, 3…, and not based on the actual name/number of the sheet. This is how you can fix this…
Go to : Thumbnails > create page labels > Page Region > Select
This will allow you the select the field (area on the PDF) that you want to use as the sheet name…When selection the region, consider sheets with larger names/numbers,
Important Note: Try to grab areas that are covering all sheet names/numbers, no matter how long they are!
And there you go!