Document Viewer takes several minutes to open an Office documentDescriptionWhen the doc viewer is used to view an attached non-pdf file, it takes around 30 seconds for it to be viewed the first time.Steps to Reproduce Make sure the doc viewer is enabledVisit any record and open itAttach a non PDF (docx) file to the form that has not been converted to pdf yetSelect the viewer buttonDocument viewer will take 30 seconds or more to render the file because it is generating a PDF version of itWhen using the doc viewer against the non pdf file for the second time it renders it within quick successionWorkaroundThis problem is currently under review. You can subscribe to this Known Error article by clicking the Subscribe button at the top right of this form to be notified when more information will become available. In the meantime, the only workarounds are below: Upload the file directly in PDF format and it will not cause delay since there is no conversion to PDF required in document viewer.Wait until the file is eventually converted. I might take some time before the pdf attachment is availableRelated Problem: PRB1839134