Utility bills are the classic proof of address — but they also contain customer numbers, meter readings and payment data nobody else needs. Blackline AI blacks out everything except what the recipient actually has to see.
Tick a category — the AI finds every match in the document and blacks it out. Names, amounts, IBANs, addresses and more, in seconds.
Service Agreement
Between Sarah Bennett, 14 Kingsway, London WC2B 6LH and Northwind Ltd.
Consulting fee 4.250,00 EUR · Setup 890,00 EUR
Payable to IBAN DE44 5001 0517 5407 3249 31
Signed by Mark Feldmann · Total 5.140,00 EUR
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Black bars are baked into a flattened image – the text underneath cannot be copied, searched or recovered.
OCR, rendering and export happen on your device. Only extracted text is sent to AI for classification.
Files are never stored on our servers. Close the tab and the document is gone.
Works with multi-page PDFs and scanned images thanks to built-in OCR.
Usually yes — proof of address requires name, address, date and provider. Everything else can safely be blacked out.
Yes. Enable the categories you want hidden and leave name and address untouched.
Yes. The AI handles electricity, gas, water, phone and internet bills alike.
Free for 3 documents per month. No signup needed to try.