I have just checked my version of acrobat pro dc is up to date.
I have also reuploaded just in case.
My problem is that when I try and create portfolios, the application crashes. I have previously done many with no problems but now I can't do any.
Any advice would be marvellous.
Sorry for the delay in response to your query and apologize for the inconvenience caused. As per the description above, the Acrobat Pro DC is crashing while creating the portfolio, Is that correct?
Please check for the latest update of Acrobat Pro from Help menu>Check for updates. You may also repair the installation files in Acrobat from Help menu>Repair installation(only for Windows).
If the issue persists, please share the following details:
Keep us posted with the results.