Analisar PDF para extrair Textos no Go SDK

package main

import (
	"encoding/json"
	"fmt"
	"os"
	"path"

	asposepdfcloud "github.com/aspose-pdf-cloud/aspose-pdf-cloud-go/v25"
)

// Extract text boxes form the document
func ParseExtractTextBoxes(documentName string, localFolder string, remoteFolder string) {
	// Get your AppSecret and Key from https://dashboard.aspose.cloud (free registration required).
	pdf_api := asposepdfcloud.NewPdfApiService(APP_SID, APP_KEY, "")

	args := map[string]interface{}{
		"folder": remoteFolder,
	}

	file, _ := os.Open(path.Join(localFolder, documentName))	
	_, _, _ = pdf_api.UploadFile(path.Join(remoteFolder, documentName), file, args)

	result, httpResponse, err := pdf_api.GetDocumentTextBoxFields(documentName, args)
	if err != nil {
		fmt.Println(err.Error())
	} else if httpResponse.StatusCode < 200 || httpResponse.StatusCode > 299 {
		fmt.Println("ParseExtractTextBoxes(): Failed to extract text boxes from the document.")
	} else {
		if result.Fields == nil || len(result.Fields.List) == 0 {
			fmt.Println("ParseExtractTextBoxes(): Text boxes not found in the document.")
		} else {
			resultJson := "[\n"
			for _, textBox := range result.Fields.List {
				fmt.Println("TextBox", textBox)
				jsTable, _ := json.Marshal(textBox)
				resultJson += string(jsTable) + ",\n\n"
			}
			resultJson += "]"
			fileName := path.Join(localFolder, ("parsed_taext_boxes_output_go.json"))
			f, _ := os.Create(fileName)
			_, _ = f.Write([]byte(resultJson))
			fmt.Println("File '" + fileName + "' successfully downloaded.")
		}
	}
}