I'm working on a project where I have to extract specific text from a pdf so that I can send these info into an excel file.
I tried at first to convert my pdf into a .txt file thinking a .txt file format would be easier to convert into json.
But the result is not at all what I need (dictionary-style Json format) but instead a kind of giant messy string .
The pdf sample looks like this:
Analysis
Some text
Reference Date 11/17/2021
Reference Price USD 745
Client id 4572845
I'd like to have something like this at the end:
{Analysis:Some text, Reference Date:11/17/2021, Reference Price:USD 745, Client id:4572845 }
Currently the results give all the info mixed up between each others.
Here is my code:
First, I created a "Global" class where I will create the method "Extract_Row_Info_TS that will basically load the first page of the document (called a TS or Termsheet) and extract the text from the PDF and store it into a txt file called "result.txt":
- Code: Select all
class Global
{
public static void Extract_RowInfo_TS(string doc_Type, string docPath, int? nbrPage = null)
{
switch (doc_Type)
{
case "Pdf":
Spire.Pdf.PdfDocument doc = new Spire.Pdf.PdfDocument();
doc.LoadFromFile(docPath);
StringBuilder buffer = new StringBuilder();
//Extract text from the first page only
Spire.Pdf.PdfPageBase pagefirst = doc.Pages[0];
buffer.Append(pagefirst.ExtractText());
doc.Close();
//save text
String fileName = @"my_disk:\my_path\result.txt";
File.WriteAllText(fileName, buffer.ToString());
//Load File
System.Diagnostics.Process.Start(fileName);
break;
case "Excel":
Spire.Xls.Workbook Wb = new Spire.Xls.Workbook();
break;
case "Word":
Spire.Doc.Document doc_word = new Spire.Doc.Document();
break;
}
}
}
Come back to my main page, I call the above method "Extract_RowInfo_TS" from above Global class and when it created "result.txt" from the pdf infos, I'll try to convert this "result.txt" into a json format:
- Code: Select all
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btn_Extract_PDF_Click(object sender, EventArgs e)
{
Global.Extract_RowInfo_TS("Pdf", @"my_disk:\my_path\my_doc.pdf");
Convert_To_Json_Format(@"my_disk:\my_path\result.txt");
}
private void Convert_To_Json_Format(string baseTextFile)
{
string streamText = new StreamReader(baseTextFile).ReadToEnd();
// Serialize Json Data.
string serializeData = Serialize_into_Json(streamText);
string newFile = @"my_disk:\my_path\NEW_text_file_2.txt";
File.WriteAllText(newFile, serializeData);
System.Diagnostics.Process.Start(newFile);
}
private static string Serialize_into_Json(string json)
{
string jsonData = JsonConvert.SerializeObject(json);
return jsonData;
}
}
I'm stuck here trying to create a proper json format file that I can use for sending into my Excel file. Any help would be much appreciated !
Thanks in advance for helping and have a great day.
