I can't export a pdf from InDesign, then InDesign itself closes (no crash report, even though I changed the setting so I can see one). This issue has only started today (18 December); the last time I exported a pdf was 4 days ago and it was fine. I'm using Windows Pro 10, have updated InDesign to the latest version, restarted the computer and tried various settings. Please help! I have a client waiting for the document and I can't deliver it. With thanks.