com.spire.pdf.packages.sprfhc: Value cannot be null.

[derkmingFong]

Hi there,

I am a new user for spire.pdf.

I used the following code to extract text data from pdf

import com.spire.pdf.*;
import com.spire.pdf.PdfPageBase;
import java.io.*;

public class Extract_Text {

public static void main(String[] args) throws IOException {
String input="1-s2.0-S187705092030750X-main.pdf";

//Load the PDF file
PdfDocument doc = new PdfDocument();
doc.loadFromFile(input);

//Create a new txt file to save the extracted text
String result = "output/extractAllText.txt";
File file=new File(result);
if(!file.exists()){
file.delete();
}
file.createNewFile();
FileWriter fw=new FileWriter(file,true);
BufferedWriter bw=new BufferedWriter(fw);

//Extract text from all the pages on the PDF
PdfPageBase page;
for(int i=0;i<doc.getPages().getCount();i++){
page=doc.getPages().get(i);
String text = page.extractText(true);
bw.write(text);
}

bw.flush();
bw.close();
fw.close();
}
}
But the following error has occured
Exception in thread "main" class com.spire.pdf.packages.sprfhc: Value cannot be null.
Parameter name: File doesn't exist
Parameter name: filename

[Brian.Li]

Hello,

Thanks for your inquiry.
From your error message, your issue should be caused by the file path "1-s2.0-S187705092030750X-main.pdf" that you passed in does not exist. Our loadFromFile method supports the use of relative and absolute paths. Please make sure that your input file path is correct and your project has permission to access the file.

If there is still any issue, please provide your input file for further investigation. You can send it to us (support@e-iceblue.com) via email. Thanks in advance.

Sincerely,
Brian
E-iceblue support team

[Brian.Li]

Hello,

How is your issue now? Could you please give us some feedback at your convenience?

Sincerely,
Brian
E-iceblue support team

[Shamsulhuda]

how to apply digital signature on xml file please provide some guidance and documentation

[Andy.Zhou]

how to apply digital signature on xml file please provide some guidance and documentation

Hi,

I'm sorry that our products don't support adding digital signature on a xml file. If you have any other questions about our products, please feel free to contact us.