# appendFrame method

void appendFrame(

1. DocumentImage image

)

Appends a frame in the FIFO buffer.

param image Source image of the aligned document to append throws DocumentException An error has occurred during Document Library execution.

## Implementation

    void appendFrame(DocumentImage image) {
      var err = documentSDK.id3DocumentAuthenticator_AppendFrame(_pHandle.value, image.handle);
      if (err != DocumentError.success.value) {
        throw DocumentException(err);
      }
    }