Hi All.
Answered my own question. Disabled pdftoolkit and re-enabled XPDF. Works
with files that are set to prevent copying and seems to do a better job
with the text extraction.
Kind Regards.
Shaun.
On 2020/04/24 13:39, Shaun donovan wrote:
Hi all.
I am receiving the following error when trying to run filter-media on
certain pdf files:
java.io.IOException
at
org.apache.pdfbox.filter.FlateFilter.decode(FlateFilter.java:108)
at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:379)
at org.apache.pdfbox.cos.COSStream.doDecode(COSStream.java:291)
at
org.apache.pdfbox.cos.COSStream.getUnfilteredStream(COSStream.java:225)
at
org.apache.pdfbox.pdfparser.PDFStreamParser.<init>(PDFStreamParser.java:117)
at
org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:252)
at
org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:236)
at
org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:216)
at
org.apache.pdfbox.util.PDFTextStripper.processPage(PDFTextStripper.java:471)
at
org.apache.pdfbox.util.PDFTextStripper.processPages(PDFTextStripper.java:395)
at
org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:354)
at
org.dspace.app.mediafilter.PDFFilter.getDestinationStream(PDFFilter.java:101)
at
org.dspace.app.mediafilter.MediaFilterManager.processBitstream(MediaFilterManager.java:734)
at
org.dspace.app.mediafilter.MediaFilterManager.filterBitstream(MediaFilterManager.java:550)
at
org.dspace.app.mediafilter.MediaFilterManager.filterItem(MediaFilterManager.java:500)
at
org.dspace.app.mediafilter.MediaFilterManager.applyFiltersItem(MediaFilterManager.java:468)
at
org.dspace.app.mediafilter.MediaFilterManager.main(MediaFilterManager.java:360)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:226)
at
org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:78)
Caused by: java.util.zip.DataFormatException: invalid block type
at java.util.zip.Inflater.inflateBytes(Native Method)
at java.util.zip.Inflater.inflate(Inflater.java:259)
at java.util.zip.Inflater.inflate(Inflater.java:280)
at
org.apache.pdfbox.filter.FlateFilter.decompress(FlateFilter.java:134)
at
org.apache.pdfbox.filter.FlateFilter.decode(FlateFilter.java:100)
I have realised that this is due to the file being encrypted to
disallow high resolution printing. If I remove the encryption, it
works perfectly. If I encrypt it with the only setting being
--accessibility=y, if fails.
So, is there a way that I can allow filter-media to run on encrypted
files? By passing it a password for example?
Kind Regards.
Shaun
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