Lenders routinely request bank statements to verify income, cash flow, or assets. However PDF copies of bank statements can be altered or even completely fabricated.
Can you go to jail for making a fake bank statement?
If you're using them to support an application for a loan or credit, or for a visa, then, dear God yes, it's very very illegal. It is, in fact, fraud, and you will go to prison and/or be deported for it.
What happens if you fake a bank statement?
If the statement is deemed to be falsified, any sort of financial transaction that you attempt will be cancelled and your file will be marked as possible fraud to credit bureaus and/or law enforcement may also be involved.