[Dspace-tech] XPDF to Thumbnail Preview in DSpace 1.8.2

[Osama Alkadi]

Hi all,

We are running dspace 1.8.2/Linux and having some issues with the pdftoppm tool when extracting some PDF's thumbnail. 

Some properties of the PDF's:

- Encoding software includes: Adobe PDF Library, Acrobat Distiller,  Acrobat PDFWriter.

- Size: varies from 1 to 10 MB.

In the logs (in debug mode) throws this after executing filter-media:

INFO  org.dspace.app.mediafilter.XPDF2Thumbnail @ XPDF2Thumbnail: outPrefix: /tmp/prevu1738144616485715914out

ERROR org.dspace.app.mediafilter.XPDF2Thumbnail @ Unable to delete file

ERROR org.dspace.app.mediafilter.XPDF2Thumbnail @ PDF conversion proc failed, exit status=1, file=/tmp/DSfilt2694438157933967840.pdf

--

Full Filter Name: org.dspace.app.mediafilter.HTMLFilter

org.dspace.app.mediafilter.HTMLFilter

Full Filter Name: org.dspace.app.mediafilter.WordFilter

org.dspace.app.mediafilter.WordFilter

Full Filter Name: org.dspace.app.mediafilter.JPEGFilter

org.dspace.app.mediafilter.JPEGFilter

Full Filter Name: org.dspace.app.mediafilter.XPDF2Text

org.dspace.app.mediafilter.XPDF2Text

Full Filter Name: org.dspace.app.mediafilter.BrandedPreviewJPEGFilter

org.dspace.app.mediafilter.BrandedPreviewJPEGFilter

Full Filter Name: org.dspace.app.mediafilter.XPDF2Thumbnail

org.dspace.app.mediafilter.XPDF2Thumbnail

Full Filter Name: org.dspace.app.mediafilter.PowerPointFilter

org.dspace.app.mediafilter.PowerPointFilter

FILTERED: bitstream 38802 (item: 1885/8749) and created 'DevelopmentBulletin-73_2009.pdf.txt'

ERROR filtering, skipping bitstream:

Item Handle: 1885/8749

Bundle Name: ORIGINAL

File Size: 1445348

Checksum: 1a1b0472e9361c4a4a00d30846f3e211 (MD5)

Asset Store: 0

javax.imageio.IIOException: Can't read input file!

javax.imageio.IIOException: Can't read input file!

at javax.imageio.ImageIO.read(ImageIO.java:1275)

at org.dspace.app.mediafilter.XPDF2Thumbnail.getDestinationStream(XPDF2Thumbnail.java:246)

at org.dspace.app.mediafilter.MediaFilterManager.processBitstream(MediaFilterManager.java:746)

at org.dspace.app.mediafilter.MediaFilterManager.filterBitstream(MediaFilterManager.java:561)

at org.dspace.app.mediafilter.MediaFilterManager.filterItem(MediaFilterManager.java:511)

at org.dspace.app.mediafilter.MediaFilterManager.applyFiltersItem(MediaFilterManager.java:479)

at org.dspace.app.mediafilter.MediaFilterManager.main(MediaFilterManager.java:353)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:183)

FILTERED: bitstream 38805 (item: 1885/8749) and created '01whole_Grubb.pdf.txt'

FILTERED: bitstream 38805 (item: 1885/8749) and created '01whole_Grubb.pdf.jpg'

Updating search index:

Strangely, even when running the pdftoppm tool  manually I get  "Bogus memory allocation size"  error.  My JAVA_OPTS is set to "-Xmx1024M -Xms128M -XX:PermSize=192M -XX:MaxPermSize=384M"

Also someone on the mailing list  suggested a solution to change a line in XPDF2Thumbnail.java near the line reporting the error . The line was

File outf = new File(outPrefix+"-000001.ppm");

and change to 

File outf = new File(outPrefix+"-001.ppm");

Unfortunately, this has not worked for me. Any help would be appreciated?

Thanks

[Osama Alkadi]

Just a follow up on my previous email, I ran the pdftoppm manually using this command and got the error below:

pdftoppm -q -f 1 -l 1 -r 62 DevelopmentBulletin-73_2009.pdf bleg2

Bogus memory allocation size

Link to the pdf file at: http://hdl.handle.net/1885/9207

Has anyone seen this error?

Thanks

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[Osama Alkadi]

We upgraded pdftoppm from 3.0 to 3.02 and that fixed the problem.

Thanks

Osama

[helix84]

On Fri, Aug 31, 2012 at 4:30 AM, Osama Alkadi <osama....@anu.edu.au> wrote:
> We upgraded pdftoppm from 3.0 to 3.02 and that fixed the problem.

Thanks for reporting back!

Regards,
~~helix84