Xiaohong Yang created TIKA-4276:
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Summary: Tika fails to detect damaged pdf
Key: TIKA-4276
URL: https://issues.apache.org/jira/browse/TIKA-4276
Project: Tika
Issue Type: Bug
Affects Versions: 2.9.2
Reporter: Xiaohong Yang
We use Tika to check file type and extension. However, with some damaged pdf
files Tika detects them as text file.
Wonder if you can make Tika detect the damaged pdf file as pdf file type and
extension.
Following is the sample code and the link to the tika-config.xml and the sample
PDF file is [https://1drv.ms/u/s!AvHwMs711s9lgfhtXqh0ycQyzqfG2w?e=q6y2es]
The operating system is Ubuntu 20.04. Java version is 21. Tika version is
2.9.2 and POI version is 5.2.3.
import org.apache.tika.config.TikaConfig;
import org.apache.tika.detect.Detector;
import org.apache.tika.io.TikaInputStream;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.metadata.TikaCoreProperties;
import org.apache.tika.mime.MediaType;
import org.apache.tika.mime.MimeType;
import java.io.FileInputStream;
public class DetectDamagedPDF {
public static void main(String args[]) {
try {
String filePath =
"/home/ubuntu/testdirs/testdir_damaged_pdf/DamagedPDF.pdf";
TikaConfig config = new
TikaConfig("/home/ubuntu/testdirs/testdir_damaged_pdf/tika-config.xml");
Detector detector = config.getDetector();
Metadata metadata = new Metadata();
FileInputStream fis = new FileInputStream(filePath);
TikaInputStream stream = TikaInputStream.get(fis);
metadata.add(TikaCoreProperties.RESOURCE_NAME_KEY, filePath);
MediaType mediaType = detector.detect(stream, metadata);
MimeType mimeType =
config.getMimeRepository().forName(mediaType.toString());
String tikaExtension = mimeType.getExtension();
System.out.println("tikaExtension = " + tikaExtension);
}
catch(Exception ex) {
ex.printStackTrace();
}
}
}
[^Tika_Config_and_Sample_PDF.zip]
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