I have tried to combine large segments of PDF into a single file on Mac. Approximately 600 pages in all. It's been working away for a month without actually combining or stopping. How I do stop combining or delete the files? I keep getting a message saying files cannot be opened during conversion. Thank you.
We have got two thing mixed here Mac and iOS. Would you help us with more information, where exactly you are getting this message (Mobile device or Mac machine) and how you are ending up getting that message? What do you mean "how i do stop combining files?" and You can delete your files, if you mean from cloud, go to documentcloud.adobe.com login with your Adobe ID and password and try deleting the files. Once deleted they never can be recovered.