Use this option to save your report in PDF format for offline access.
In the upper right, click the arrow within Share > Download report Or you can also access it within the file menu goto File > Download as > PDF
A dialog box will appear
Configure your desired download options.
Click DOWNLOAD.
Ignore custom background colour: a transparent background, and will remove all the custom background-colour
Add a link back to the report: Adds an "Open in Looker Studio" link to the PDF bookmarks section.
Password protect report: set a password to your PDF report.