Daniel Persson created PDFBOX-4501:
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Summary: References numbers in embedded PDF become floats
Key: PDFBOX-4501
URL: https://issues.apache.org/jira/browse/PDFBOX-4501
Project: PDFBox
Issue Type: Bug
Reporter: Daniel Persson
Attachments: float_pointer.patch
Hi everyone.
We found an issue that happens sometimes with smaller producers that create PDF
files with embedded advertisements or other articles.
For some reason, this embedded makes the library to throw an exception and not
read the file. In many cases, we can read most of the pages but just these
embedded data will be missing.
I wrote a little patch that will handle the issue but I don't know how to
decode the embedded data so I have not debugged the issue further. I will add a
link to the file because it's 124 Mb so not allowed to upload with the issue.
[https://drive.google.com/file/d/1hQslqtrbIoo5bTmMXgH1NDSYXuvIUOAQ/view?usp=sharing]
If we could find a solution where the PDF could be read correctly that would be
great but the current behavior of not reading it at all is not great.
```
java.io.IOException: expected number, actual=COSFloat\{18446744073221199360} at
offset 127766191
org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionaryValue(BaseParser.java:166)
org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionaryNameValuePair(BaseParser.java:279)
org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionary(BaseParser.java:212)
org.apache.pdfbox.pdfparser.BaseParser.parseDirObject(BaseParser.java:864)
org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:912)
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:881)
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:801)
org.apache.pdfbox.pdfparser.COSParser.parseDictObjects(COSParser.java:761)
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:187)
org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:226)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1069)
org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1007)
org.apache.pdfbox.debugger.PDFDebugger$12.open(PDFDebugger.java:1272)
org.apache.pdfbox.debugger.PDFDebugger$DocumentOpener.parse(PDFDebugger.java:1383)
org.apache.pdfbox.debugger.PDFDebugger.readPDFFile(PDFDebugger.java:1275)
org.apache.pdfbox.debugger.PDFDebugger.readPDFFile(PDFDebugger.java:1252)
org.apache.pdfbox.debugger.PDFDebugger.main(PDFDebugger.java:1243)
```
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