Security27 May 2026 6 min read

Is It Safe to Convert Bank Statements Online?

What to check before you upload a financial statement to any online converter — encryption, file retention, and what happens to your data after processing.

A bank statement is one of the more sensitive documents you'll ever upload to a website — it has your account number, your income, your spending, sometimes your address. It's a completely reasonable question to ask before uploading one anywhere: what actually happens to this file once I hit submit?

Four things worth checking on any statement converter

  1. Is the connection encrypted? Look for HTTPS (the padlock in your browser) on every page that handles the upload, not just the homepage. If a site lets you upload a file over plain HTTP, don't use it.
  2. Is the file kept after processing, or deleted? This is the single biggest difference between converters. Some retain every file you upload indefinitely (sometimes to improve their own product); others process the file and delete it. Read the privacy policy, specifically the retention section — not just the marketing copy.
  3. Is the extracted data used to train models? Even if the source file is deleted, some services still use the content — transaction descriptions, amounts — to train models for other customers. If that matters to you, look for an explicit statement that it doesn't happen.
  4. Is the result verifiable, or do you have to trust it blind? A converter that shows you a balance check — proving the extracted transactions actually sum to the statement's own closing balance — gives you a way to catch an error. One that just hands you a spreadsheet with no way to verify it is asking you to trust it on faith.

How Ledgerary handles this

Since this is exactly the trust question every visitor to this page is implicitly asking, here's the direct answer for Ledgerary specifically:

  • Every upload and API call runs over HTTPS/TLS.
  • Your statement PDF is used only to run the extraction job, then deleted — we don't keep a standing copy of the document you uploaded.
  • We don't use the content of statements you upload to train models for other customers.
  • Every job includes a balance check (opening balance + net of transactions vs. the closing balance printed on the statement) and a confidence score, so you have a concrete way to judge whether the result is trustworthy before you rely on it.
  • API keys are stored hashed, never in plaintext, and can be revoked instantly if one is ever exposed.

None of this makes Ledgerary a bank, a lender, or a regulated financial institution — it's a document-conversion tool. See the full detail on our security page, and read the privacy policy before you upload anything you'd rather not have retained.

What you should still do yourself

No converter, however careful, replaces basic judgment. A few habits worth keeping regardless of which tool you use: don't upload statements over public, unsecured wifi if you can avoid it; check that the site's certificate is valid before you upload anything (your browser will warn you if it isn't); and always spot-check a handful of converted rows against the original PDF, especially the first time you use a new tool — the balance check catches arithmetic mismatches, but it's still worth a human glance at a sample of the data.

The reassuring version of all this: converting a statement online is not inherently riskier than emailing it to your accountant or uploading it to your accounting software — both of those involve trusting a third party with the same document. The questions above are the ones worth asking of any of them.

Read the full detail on how Ledgerary handles uploaded files, encryption and retention.

Read the security page

This guide is general reference, not financial, accounting or tax advice. To try the conversion on a real file, use the bank statement converter, or see how the same engine works from your own code or an AI agent.

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