Unable to detect the tables content and format

I have a few PDF documents with tables that are not being able to process well by the 'Adobe PDF Service' API. Please find attached a screenshot and below mentioned issues for reference.

• Table text is detected as special characters 
• Improper format for table cells 
• Unable to identify table headings
• And more....

Please provide me an email to share original sample PDF documents that are causing this issue. Thank you!