I have created a custom processor using google AutoML entity extractor and trained few pdfs. The Pdf’s actually contains Photo identity card. I was able to test it in their UI and it was able to extract the entity properly. Now Im using their Java client library to do it using code given below. Here is the sample https://github.com/googleapis/java-automl/blob/b4c760c01efbd2174d93af85c5fbab3c09eee9f2/samples/snippets/src/main/java/com/example/automl/LanguageEntityExtractionPredict.java Here