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https://issues.apache.org/jira/browse/PDFBOX-1757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13813865#comment-13813865
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William Palmer commented on PDFBOX-1757:
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As an epilogue - I tested Preflight 2.0.0-SNAPSHOT against these files, some
exceptions were thrown, and a lot of "1.0 Syntax error" were recorded. A
couple of files work ok when tested against PDFBox 2.0.0-SNAPSHOT but all bar
one also fail when using iText, so it is indeed looking like broken files.
One way around these files may be to add a Preflight test before processing.
I have copied the files for this bug report here:
https://github.com/openplanets/format-corpus/tree/master/govdocs1-error-pdfs/error_set_2
(in case they would be useful as a test set)
Thanks for your time looking at this, it's appreciated.
> Errors parsing/extracting text from a PDF
> -----------------------------------------
>
> Key: PDFBOX-1757
> URL: https://issues.apache.org/jira/browse/PDFBOX-1757
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 1.8.2
> Environment: Ubuntu Linux & Windows 7 (both JDK6)
> Reporter: William Palmer
> Assignee: Timo Boehme
> Priority: Minor
>
> I am trying to extract text from PDFs. Extracting text from the test file
> http://digitalcorpora.org/corp/nps/files/govdocs1/020/020747.pdf causes
> exceptions to be thrown.
> The first:
> Exception in thread "main" java.lang.RuntimeException: java.io.IOException:
> Value is not an integer: 636121514401477526485946144
> at
> org.apache.pdfbox.pdfparser.PDFStreamParser$1.tryNext(PDFStreamParser.java:187)
> at
> org.apache.pdfbox.pdfparser.PDFStreamParser$1.hasNext(PDFStreamParser.java:194)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:255)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
> at
> org.apache.pdfbox.util.PDFTextStripper.processPage(PDFTextStripper.java:455)
> at
> org.apache.pdfbox.util.PDFTextStripper.processPages(PDFTextStripper.java:379)
> at
> org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:335)
> Caused by: java.io.IOException: Value is not an integer:
> 636121514401477526485946144
> at org.apache.pdfbox.cos.COSNumber.get(COSNumber.java:104)
> at
> org.apache.pdfbox.pdfparser.PDFStreamParser.parseNextToken(PDFStreamParser.java:351)
> at
> org.apache.pdfbox.pdfparser.PDFStreamParser.access$000(PDFStreamParser.java:46)
> at
> org.apache.pdfbox.pdfparser.PDFStreamParser$1.tryNext(PDFStreamParser.java:182)
> Code to cause above exception:
> PDFTextStripper ts = new PDFTextStripper();
> PrintWriter out = new PrintWriter(new FileWriter(new File ("020747.txt")));
> PDDocument doc = PDDocument.load(new File("020747.pdf").toURI().toURL(),
> true);
> ts.setForceParsing(true);
> ts.writeText(doc, out);
> Using the following code causes a different exception until
> org.apache.pdfbox.baseParser.pushBackSize is increased (only tested 1024768).
> After it is increased I get basically the same exception as above
> PrintWriter out = new PrintWriter(new FileWriter(new File("020747.txt")));
> PDFParser parser = new PDFParser(new FileInputStream(new File("020747.pdf")));
> parser.parse();
> PDFTextStripper ts = new PDFTextStripper();
> ts.setForceParsing(true);
> ts.writeText(parser.getPDDocument(), out);
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