Entered input text gets truncated after flatterning or print

How to view the large content of entered data in some specific text controls (TextFormField) without it being truncated after flatterning or print.

Say for sample if i make the textformfield as multiline so, I would able to enter multiple lines .
After flatterning the document, the entered data gets truncated or trimmed.

Can you please suggest how to view the entered input data.

Please find the attached snapshot for your reference.

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