The Source for Google slides is the Gannt sheet generated from the Timeline sheet. The example has been made on the MeDigital presentation.
Google slide template can be copied and adapted according to your preferences. The template contains placeholders for the Timeline items e.g. [headline], [description]. You van change their attributes as changing fonts, windows location and sizes.
By running the Google slides option from the Config sheet the template gets copied accordign to the number of rows in the Timeline sheet. Then the placeholders will be replaced with the relevant fields.
PDF file can be generated from the slides by using standard option: File/Download to PDF.