# Ocr.DocumentFromFileAsync Run OCR over a local file. Any Content on is replaced by the file's base64-encoded bytes; other fields (page range, markdown, …) are preserved. The caller's request is never mutated. ```csharp Task DocumentFromFileAsync(string filePath, OcrDocumentRequest? request = null, CancellationToken ct = default) ``` [Ocr](../Ocr.md) · [.NET](../../dotnet.md) Related types — open only those used by your request: - [OcrDocumentRequest](../models/OcrDocumentRequest.md)