Error in extract PDF data using Data Scraping

Hi there,

I am trying to extract structured data from PDF using Data Scraping tool.Everything seems to be perfect until there’s some alien wordings/symbols appearing in the PDF. Data Scraping tool can’t extract them at all. Below are some of the example of alien wordings.
image

Just curious, is there any workaround for this?

Any feedback would be highly appreciated.
Thank you.