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https://issues.apache.org/jira/browse/PDFBOX-4763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17030089#comment-17030089
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Tilman Hausherr commented on PDFBOX-4763:
-----------------------------------------
Yeah something is wrong, from looking at the source code, it would indeed
return an empty stream if hitting a filter
{code:java}
public InputStream createInputStream(List<String> stopFilters) throws
IOException
{
List<String> filters = getFilters();
ByteArrayInputStream in = new ByteArrayInputStream(rawData);
ByteArrayOutputStream out = new ByteArrayOutputStream(rawData.length);
for (int i = 0; filters != null && i < filters.size(); i++)
{
// TODO handling of abbreviated names belongs here, rather than in
other classes
out.reset();
if (stopFilters.contains(filters.get(i)))
{
break;
}
else
{
Filter filter = FilterFactory.INSTANCE.getFilter(filters.get(i));
filter.decode(in, out, parameters, i);
in = new ByteArrayInputStream(out.toByteArray());
}
}
return new ByteArrayInputStream(out.toByteArray());
}
{code}
> Can't get inline image raw data
> -------------------------------
>
> Key: PDFBOX-4763
> URL: https://issues.apache.org/jira/browse/PDFBOX-4763
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.15
> Reporter: Constantine Dokolas
> Priority: Minor
>
> I'm trying to "clone" an inline image (having the original {{PDInlineImage}}
> object) and I can't find a way to access the raw image data. The reason I
> want the raw data is because I'm copying the dictionary as it is, including
> the filters, and using the {{PDInlineImage}} constructor (not going via a
> {{BufferdImage}} and {{LosslessFactory}}).
> It would seem to me that {{createInputStream(List<String> stopFilters)}}
> should return the un-decoded stream when provided with a list blocking all
> filters, but all it returns is an empty stream. The source code suggests that
> {{PDImageXObject}} has the same behavior. This should not be the case. When
> decoding is blocked, the raw data should be returned.
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