With extemely large files, or files with large amounts of data, cause a timeout issue with the conversion to PDF. A spreadsheet (19000 rows of data) would cause application timed out. When this has occurred, it locks up the world wide web publishing services and causes applications to basically not execute any longer. You will see the progress bar start to move and then it just seems to hang. The only way we have found to correct the issue is to stop/start the service.
What do you think is happening and is there something we can do to prevent it?