LibreOffice tool can be used to convert MSOffice documents to pdf file. My team noticed that our system seems failed to convert the documents randomly after we are trying to run the process in parallel. Digging up the internet, I found that it is a common issue, https://bugs.documentfoundation.org/show_bug.cgi?id=37531. Fortunately there is a simple solution to that, by simply passing an additional parameter, to specify a different installation folder. lowriter -env:UserInstallation=file://$random_dir –convert-to pdf –outdir $output_dir $input_file I am adding -env:UserInstallation parameter additionally from our existing command.