How to redact a bank statement properly
By the Banking Converter editorial team
Published
To redact a bank statement, use a tool with a true redaction feature that deletes the underlying text and image data (Adobe Acrobat Pro's Redact tool, macOS Preview's Redact tool, or PDF-XChange), or print the marked-up statement to an image and re-save it. Drawing a black rectangle over text in an ordinary editor does not remove the text: it can still be selected, copied and searched.
Why a black box is not redaction
A PDF page is a list of drawing instructions. A rectangle drawn on top of a number adds an instruction; it does not delete the one that draws the number. Anyone can select the hidden text, search for it, or open the file in a tool that ignores the rectangle. Redaction means rewriting the page so the content is gone, and, for scanned pages, altering the image pixels.
Tools that redact correctly
| Tool | How | Notes |
|---|---|---|
| Adobe Acrobat Pro | Tools, Redact, mark areas or search text, Apply | Also removes hidden metadata with Sanitize Document |
| macOS Preview (Big Sur and later) | Tools, Redact, draw over the content, save | Flattens the page; undo is not possible after saving |
| PDF-XChange Editor | Protect, Mark for Redaction, Apply | Windows |
| LibreOffice Draw | Tools, Redact, then export as PDF | Free; exports a rasterised page |
| Print to image | Mark up, print or export as PNG/JPEG, then back to PDF | Works with any editor; the result is an image (OCR needed later) |
After redacting, verify: select all text on the page (Ctrl+A or Cmd+A) and search for the redacted number. If it is found, the redaction failed.
What to redact, and what to keep
- Usually redact: full account number (leave the last four digits), routing number or sort code, IBAN, customer number, address, phone number, and transaction lines unrelated to the purpose.
- Usually keep: your name (the recipient needs to tie the statement to you), the bank's name, the statement period, opening and closing balances, and the transactions that matter.
- For conversion: keep balances and all transaction lines. A converter reconciles opening + credits − debits against the closing balance; redacting any of those makes the check fail and the rows unverifiable.
Step by step in Acrobat
- Duplicate the file first; redaction is destructive.
- Tools, Redact. Use Find Text to redact every occurrence of the account number at once, then mark any remaining areas by hand.
- Apply. Choose whether to fill with black or leave blank.
- Sanitize Document to strip metadata, comments and hidden layers.
- Save under a new name and verify with search.
Redacting scanned statements
On an image page there is no text to delete, only pixels. A drawn rectangle that is flattened into the image is sufficient, but many editors keep it as a separate annotation layer that can be moved or deleted. Export the page as an image after marking it up, or use a tool that flattens. Remember that a scanned page is also readable by OCR, so any partly covered digit is a leak.
Frequently asked questions
Will a redacted statement still convert?
Yes, as long as the transaction table and balances are intact. Redacted account numbers simply appear as masked; the converter masks them anyway. Redacted balances cause the reconciliation tests to be skipped or fail.
Can I redact by changing the text colour to white?
No. White text is still text; it selects, copies and searches. Use a redaction tool.
Other bank statement converters
About the author
The Banking Converter editorial team is the engineering group that builds and tests the conversion engine: the parsers for regional date and number formats, the reconciliation checks and the CSV, Excel, JSON, OFX and QBO exporters. Guides describe what the software does and what the formats require; they are not financial, legal or tax advice.