ASCII RUNNER — LOCAL FILE SAFETY README
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TERMS AND ACCEPTANCE

Before first use, ASCII Runner presents the current Terms of Use, Privacy
Notice, and Local-First Notice and requires an explicit I AGREE action.
The accepted terms version and timestamp are stored only in this browser's
local storage and are not transmitted to TRUNNER.NET. Clearing browser data
removes that local record.

LOCAL-ONLY OPERATION

ASCII Runner processes imported images inside your browser. The app has no
image-upload endpoint, account system, analytics, remote conversion service,
or network API. The site's Content Security Policy also blocks script network
connections.

Exports are generated in browser memory and saved only when you choose a
download or clipboard action. Camera frames are processed locally and the
camera stops when the page is hidden or closed.

ACCEPTED IMAGE FILES

- PNG (.png, image/png)
- JPEG (.jpg or .jpeg, image/jpeg)
- Maximum file size: 10 MB
- Maximum decoded dimensions: 24 megapixels total
- Maximum width or height: 8,192 pixels

VALIDATION BEFORE DECODING

Where available, ASCII Runner checks the filename extension. It also checks
the browser-declared MIME type, binary PNG/JPEG signature, required structural
markers, embedded width and height, file size, and pixel limits. The browser's
decoded dimensions must match the inspected dimensions.

Files with missing, conflicting, malformed, disguised, oversized, or
unsupported data are blocked before rendering.

SECURITY LIMIT

These controls reduce exposure to mislabeled, malformed, and resource-heavy
files. They are not antivirus software and cannot prove that every image
decoder is free of browser vulnerabilities. Only open images you trust, keep
your browser updated, and close the page if the browser behaves unexpectedly.