If the running balance on your Novo Banco statement does not add up row by row, that is exactly the kind of mismatch Convert·Into is built to catch rather than pass through silently. The engine reads the closing balance printed on the statement and checks it against the running balance it computed from your transactions, line by line. If a row does not add up, that row is flagged for your review; no file is rejected outright because of a single mismatch. This lets you trust the numbers you export, knowing every figure has been tested against the bank's own record.
If the Novo Banco statement you have is a scanned image or a phone photo instead of an exported file, that alone does not stop Convert·Into from reading the transaction table off it. When a statement was scanned or photographed rather than supplied as a clean digital file, the extraction pipeline applies optical character recognition to retrieve the table data. The same running-balance verification is applied to these readings as to any other statement, so a digit misread by the scanner can be caught and corrected before the output is finalised. The layout detection adapts to rotated or slightly skewed images without manual adjustment, and the output is delivered in the same structured format you would get from a native file.