Javascript 获取错误：通过LWC js中的adobe api发送文件时，输入文件似乎已损坏，无法处理

我在通过FetchAPI将文件发送到adobe时收到错误响应。 我得到的错误如下：

{"cpf:inputs":{"documentIn":{"cpf:location":"InputFile0","dc:format":"application/vnd.openxmlformats-officedocument.wordprocessingml.document"}},"cpf:engine":{"repo:assetId":"urn:aaid:cpf:Service-1538ece812254acaac2a07799503a430"},"cpf:status":{"completed":true,"type":"","title":"For application/vnd.openxmlformats-officedocument.wordprocessingml.document mime-type The input file appears to be corrupted and cannot be processed.; transactionId=rg2xvsgT0KgnTk4L0cGR7PWMK20RVt5P","status":400,"report":"{\"error_code\":\"CORRUPT_DOCUMENT\"}"}}

我的代码是：

这里fileData基本上是文件的base64，在传递给方法之前，我已经通过解码检查了base64

adobeApiHIT(fileData, docMimeType) {
  try{
let authToken = 'Bearer ' + this.accessToken;
const blob = this.b64toBlob(fileData, docMimeType);


var formdata = new FormData();
formdata.append("contentAnalyzerRequests", "{\n \"cpf:inputs\": {\n     \"documentIn\": {\n         \"cpf:location\": \"InputFile0\",\n         \"dc:format\": \"application/vnd.openxmlformats-officedocument.wordprocessingml.document\"\n        }\n },\n    \"cpf:engine\": {\n     \"repo:assetId\": \"urn:aaid:cpf:Service-1538ece812254acaac2a07799503a430\"\n   },\n    \"cpf:outputs\": {\n        \"documentOut\": {\n            \"cpf:location\": \"multipartLabelOut\",\n          \"dc:format\": \"application/pdf\"\n        }\n }\n}");
formdata.append("InputFile0", blob, "fileName");

var requestOptions = {
  method: 'POST',
  headers: {
"Authorization": authToken,
"Accept": "application/json, text/plain, */*",
"x-api-key": this.clientId
  },
  body: formdata
};

fetch("https://cpf-ue1.adobe.io/ops/:create?respondWith=%7B%22reltype%22%3A%20%22http%3A%2F%2Fns.adobe.com%2Frel%2Fprimary%22%7D", requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));
  


       
 });
  }catch(err){
    console.log('err in adobeApihit::'+err);
  }
}

// for base64 to blob conversion
b64toBlob(b64Data, contentType, sliceSize=512){
  const byteCharacters = atob(b64Data);
  const byteArrays = [];

  for (let offset = 0; offset < byteCharacters.length; offset += sliceSize) {
    const slice = byteCharacters.slice(offset, offset + sliceSize);

    const byteNumbers = new Array(slice.length);
    for (let i = 0; i < slice.length; i++) {
      byteNumbers[i] = slice.charCodeAt(i);
    }

    const byteArray = new Uint8Array(byteNumbers);
    byteArrays.push(byteArray);
  }

  const blob = new Blob(byteArrays, {type: contentType});
  return blob;
}

adobeApiHIT（文件数据，docMimeType）{
试一试{
让authToken='Bearer'+this.accessToken；
const blob=this.b64toBlob（fileData，docMimeType）；
var formdata=new formdata（）；
formdata.append（“contentAnalyzerRequests”，“{\n\”cpf:inputs\”：{\n\“documentIn\”：{\n\“cpf:location\”：“InputFile0\”，\n\“dc:format\”：\“application/vnd.openxmlformats officedocument.wordprocessingml.document\”\n}\n\“cpf:engine\”：{\n\“repo:assetId\”：“urn:aaid:cpf:Service-1538ece812254acaac2a07799503a430 \“\n}、\n \“cpf:outputs\”：{\n \“documentOut\”：{\n \“cpf:location\”：“multipartLabelOut\”，\n \“dc:format\：“application/pdf\”：\n}\n}\n}\n}）；
append（“InputFile0”，blob，fileName”）；
var请求选项={
方法：“POST”，
标题：{
“授权”：authToken，
“接受”：“application/json，text/plain，*/*”，
“x-api-key”：this.clientId
},
正文：formdata
};
取回（“https://cpf-ue1.adobe.io/ops/:create?respondWith=%7B%22reltype%22%3A%20%22http%3A%2F%2Fns.adobe.com%2Frel%2Fprimary%22%7D“，请求选项）
.then（response=>response.text（））
.then（result=>console.log（result））
.catch（error=>console.log（'error'，error））；
});
}捕捉（错误）{
log（'adobeApihit中的错误：：'+err）；
}
}
//对于base64到blob的转换
b64toBlob（b64Data，contentType，sliceSize=512）{
常量ByTechCharacters=atob（B64数据）；
常量字节数组=[]；
for（让offset=0；offset

提前谢谢