I've created a dashboard under the Workspace and then set up weekly schedule to send this email out.
However, I found that when I open the PDF, the heading of the different numbers and graphs got cropped:
May I ask if there's any settings that I should alter to fix this issue?
The headers should be visible in Workspace so that it will be visible in PDF.
If it is not, it wont be available even in PDF. Change the dimension of the visualization to make it visible and then download.
If you're able to reproduce this by downloading a PDF of the workspace in the web UI, I would recommend reaching out to customer care so they can further troubleshoot the issue and involve engineering as needed.