Based on some testing just now, it looks like for synchronous mode single-page PDF is supported, but if you try to OCR a multi-page document, it throws: An

Based on some testing just now, it looks like for synchronous mode single-page PDF is supported, but if you try to OCR a multi-page document, it throws: An error occurred (UnsupportedDocumentException) when calling the DetectDocumentText operation: Request has unsupported document format Normally, I just use pdfsandwich [0] for PDFs, which has been good enough generally, but I'm tempted to switch to using textract, because it's been much better at rough scans for my tests. [0] http://www.tobias-elze.de/pdfsandwich/ http://www.tobias-elze.de/pdfsandwich/