exporting PDF from a Grey document results in colourful PDF!

[project_2501]

I've attached a simple Designer document.

It was created by placing imported PDFs, one of which has blue colour elements.

The document has the profile "Grey / Greyscale D50" (document settings) - and so the document overall appears greyscale, as intended.

When exporting to PDF, the resulting PDF shows the original colours, and is not greyscale. This exported PDF is attached.

I have tried messing with the export advanced options but have not succeeded.

 

How can I ensure the exported PDF only has the grey colours.

13_simple_example.pdf 13_simple_example.afdesign

[lacerto]

Obsolete.

[project_2501]

thanks @lacerto - the "passthrough -> interpret" option worked for me.