Getting validation error for Signing document which is in other language

Hi , I have created package and adding document from Salesforce. The document is in Spanish language. But i am getting below error: Line: 683, Column: 1 ESignLiveRESTAPIHelper.ESignLiveRestAPIHelperException: Error creating eSignLive package with documents: 400 - Bad Request - {"messageKey":"error.validation.verifyDocument.documentExtractError","message":"[error.validation.verifyDocument.documentExtractError]","code":400,"name":"Validation Error"} I am trying to attach Manifest_SD-157095.pdf from salesforce. PFA document in this post. I want to add Signature in one of the field in the document.For Ex: here i am trying to add where TEL. or CARGO is mentioned. If i use pdf which is in language it is working fine. But for other language it is not working. I have attached my code as well. Please can you help me to resolve this issue. Thanks, Aparna