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https://issues.apache.org/jira/browse/PDFBOX-5366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17478173#comment-17478173
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Alban Fonrouge commented on PDFBOX-5366:
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Hi, I looked more at the PDF and there is an incorrect stream in one of the
Form, which causes an IOException, which is catched too late and screws up the
push/pop mechanism.
I can suggest a fix:
{code:java}
private void processStreamOperators(PDContentStream contentStream) throws
IOException {
List<COSBase> arguments = new ArrayList<COSBase>();
PDFStreamParser parser = new PDFStreamParser(contentStream);
try {
Object token = parser.parseNextToken();
while (token != null) {
if (token instanceof Operator) {
processOperator((Operator) token, arguments);
arguments.clear();
} else {
arguments.add((COSBase) token);
}
token = parser.parseNextToken();
}
} catch (IOException e) {
LOG.warn("Error while parsing stream, stopping processing", e);
}
}
{code}
I will open another issue for the root cause of the parsing error.
> Unhandled IOException thrown from BaseParser creates issue in
> PDFStreamEngine.processStreamOperators
> ----------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-5366
> URL: https://issues.apache.org/jira/browse/PDFBOX-5366
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.25
> Reporter: Alban Fonrouge
> Priority: Major
>
> We had a document where the fonts were listed in PDFDebugger under Page: 1 /
> Resources / Fonts, but not found during rendering.
> The issue is in SetFontAndSize, which should also check the resources at the
> page level. I have attached a patch, but cannot provide a test file as this
> was a confidential file.
>
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