Have User A try the following troubleshooting:
(1) Try restoring InDesign preferences
(2) Try using different fonts (to test if the fonts they have installed are corrupted)
(3) Try creating the PDF from a different user (to look for corruption in their current user)
Thanks, Steve. I just came back from some time on the subject machine.
We know that User B can PDF the same file. After letting InDesign restore its roaming and cached preferences, I found the following:
The document has two standard Windows fonts.
Pages 1-4 will print; it hangs while downloading fonts on p.5, reporting a Distiller issue in the log.
I can print individual pages (e.g., 5, 6, 7, etc.), but it stalls when printing multiple pages after p4 regardless of which is the first page of the print effort.
Can you shed any light on why the same fonts on different pages, or multiple pages versus single pages might cause trouble?
What happens if you export PDF as opposed to creating PDF by printing?
PDF export from InDesign has always been far more reliable than printing. And we at Adobe most strongly recommend PDF via PDF export.
Like a charm! Thanks, Dov, for helping with this final answer. Tomorrow, we're going to share new knowledge about best practices...