diff --git a/File-Formats/PDF/Working-with-OCR/AWS-Textract.md b/File-Formats/PDF/Working-with-OCR/AWS-Textract.md
index 7554046ce..249f53ffd 100644
--- a/File-Formats/PDF/Working-with-OCR/AWS-Textract.md
+++ b/File-Formats/PDF/Working-with-OCR/AWS-Textract.md
@@ -91,7 +91,7 @@ class AWSExternalOcrEngine : IOcrEngine
         stream.Position = 0;
         MemoryStream memoryStream = new MemoryStream();
         stream.CopyTo(memoryStream);
-        PdfBitmap bitmap = new PdfBitmap(memoryStream);
+        PdfTiffImage bitmap = new PdfTiffImage(memoryStream);
         imageHeight = bitmap.Height;
         imageWidth = bitmap.Width;