[PDFBOX-4580] PDFTextStripper::getText() lead to OutOfMemoryError: Java heap space

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.15
• Fix Version/s: 2.0.17, 3.0.0 PDFBox
• Component/s: FontBox
• Assignee: Tilman Hausherr
• Reporter: Guilhermo
• Created: 25/Jun/19 13:24
• Updated: 30/Jun/20 06:13
• Resolved: 26/Jun/19 17:33

Description

I just discovered a memory issue (Java heap space) that happen only if we try to use stripper.getText(pdfFile) on a pdf that has missing incorporated fonts (like the one in attachment).

 

To replicate the issue you can use this snippet with the pdf file in attachment:

 

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.text.PDFTextStripper;

import java.io.IOException;
import java.io.InputStream;

public class OutOfMemoryExample {

    public static void main(String[] args) throws IOException {

        try(InputStream docStream = Thread.currentThread().getContextClassLoader().getResource("ceh.pdf").openStream();
            PDDocument cd = PDDocument.load(docStream)){

            PDFTextStripper stripper = new PDFTextStripper();
            
            // OutOfMemory here
            String  pdfText = stripper.getText(cd);

            System.out.println(pdfText);
        }

    }
}

Issue Links

• Blocked: PDFBOX-4489 Memory issue on org.apache.fontbox.ttf.GlyphSubstitutionTable.readLangSysTable(GlyphSubstitutionTable.java:147)