The official response from Matlab to a bug report I filed about Live Script output not fitting within a PDF when exported:
"I see the matrices gets truncated when exporting the attached 'file.mlx' file as 'file.pdf', which you would like to see re-sized to fit within the margins of the generated pdf file.
I apologize for the inconvenience this has caused in your workflow.
In order to achieve this, please follow the steps mentioned below,
1. Export the 'file' as 'file' and open it up in Chrome.
2. Press Ctrl+P to open the print options for the HTML document.
3. Change the "Destination" to "Save as PDF".
4. Click on the drop-down arrow for "More Settings". This will allow to customize the PDF output based on Paper size, Margins, Scale, etc.
Additionally, you can also achieve the same results through MATLAB's Report Generator and Latex document method given at the link mentioned below,
This solved my problem.