PDF filename when using Data Stream service with PDF2D writer

Hi @aquamarine,

This is a known issue with the PDF format and the Data Streaming Service and can be broken down into two parts.

When I view the file that was returned by the data streaming service in the web browser it has the name and extension of the workspace as opposed to the correct extension and name:

The problem for this lies in the PDF Writer, an issue has been filed to fix this (FMEENGINE-64169) but there is not yet a planned timeline for when it may be implemented.

Note, this also only appears to be an issue when the job is submitted in Google Chrome. For example submitting the job in IE rather than a direct stream, I'll first be prompted as to whether I want to open or save the file. If I choose open - it opens a Chrome tab but correctly shows the name.

Issue 2:

If I go to download the file to save for later, it uses this workspace name, and because the extension is incorrect the file cannot be opened without first manually changing the filename.

This issue (FMESERVER-14764) has been fixed for FME 2020.1 b20547 and FME 2021 b21903:

In the linked post the user was using the Data File Writer as opposed to the PDF Writer. The Data File format has a MIME Type parameter which as you mentioned resolved their issue, however the PDF2D Writer does not have this parameter to set, so I do not believe there is a workaround to using the PDF Writer with Data Streaming in FME 2020 and older other than the manual fix of the file name/type when saving.