helloi am trying to make a transformer from Scanned Pdf to a text PDF , the transformer should be loaded automaticly if a pdf is uploaded in alfresco . im using tesseract and alfresco 5.0after some research i have found a Post in the seedim forum that explains how to do that http://www.seedim.com.au/content/alfresco-search-pdf-images-using-transformations-and-tesseract-ocri first added a transformer in /opt/alfresco-community/tomcat/shared/classes/alfresco/extension/named PDFimage-transform-context.xml
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 'http://www.springframework.org/dtd/spring-beans.dtd'>
<beans>
<bean id="transformer.worker.pdfimg2ocrtxt" class="org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerWorker" >
<property name="mimetypeService">
<ref bean="mimetypeService" />
</property>
<property name="checkCommand">
<bean class="org.alfresco.util.exec.RuntimeExec">
<property name="commandsAndArguments">
<map>
<entry key=".*">
<list>
<value>ls</value>
<value>/opt/alfresco-community/pdf.sh</value>
</list>
</entry>
</map>
</property>
</bean>
</property>
<property name="transformCommand">
<bean class="org.alfresco.util.exec.RuntimeExec">
<property name="commandsAndArguments">
<map>
<entry key=".*">
<list>
<value>/opt/alfresco-community/pdf.sh</value>
<value>${source}</value>
<value>${target}</value>
</list>
</entry>
</map>
</property>
<property name="errorCodes">
<value>1,2,3</value>
</property>
</bean>
</property>
</bean>
<bean id="transformer.pdfimg2ocrtxt" class="org.alfresco.repo.content.transform.ProxyContentTransformer" parent="baseContentTransformer">
<property name="worker">
<ref bean="transformer.worker.pdfimg2ocrtxt" />
</property>
</bean>
</beans>
i made a script code that i placed in /opt/alfresco-community the script works fine when i lunch it from the terminal
#!/bin/bash
SOURCE=$1
TARGET=$2
TMPDIR=/home/yosri/tmp
name=yosri
TEMP_PDFTXT_FILE=$TMPDIR/pdftext.txt
echo running command "pdftotext -nopgbrk $SOURCE $TEMP_PDFTXT_FILE"
pdftotext -nopgbrk $SOURCE $TEMP_PDFTXT_FILE
FILESIZE=$(stat -c%s "$TEMP_PDFTXT_FILE")
echo "Size of $TEMP_PDFTXT_FILE = $FILESIZE bytes." >> /home/yosri/logfile.txt
# if file exists and has a size bigger than 0 then set wordlist as result of transformation and exit.
if [ -s $TEMP_PDFTXT_FILE ]; then
echo Found wordlist from in $TEMP_PDFTXT_FILE >> /home/yosri/logfile.txt
cat $TEMP_PDFTXT_FILE >> $TARGET
rm -rf $TMPDIR/$name
exit 0;
fi
# splitting to individual pages
gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=jpeg -r300 -dTextAlphaBits=4 -o out_%04d.jpg -f $SOURCE
# process each page
for f in $( ls *.jpg ); do
# extract text
tesseract $f $TMPDIR/${f%.*} -l eng
cat $TMPDIR/${f%.*}.txt >> $TMPDIR/res.txt
rm -f $TMPDIR/${f%.*}.txt
rm -f $f
done
#combine all pages back to a ${TARGET}
cat $TMPDIR/res.txt >> $TARGET
and finally i added the priority line modification on the alfresco-global.properties
content.transformer.pdfimg2ocrtxt.priority=30
content.transformer.pdfimg2ocrtxt.extensions.pdf.txt.supported=true
content.transformer.pdfimg2ocrtxt.extensions.pdf.txt.priority=30
content.transformer.pdfimg2ocrtxt.extensions.pdf.txt.maxSourceSizeKBytes.use.index=9999
but when i upload a pdf with images it still not indexed .i added some extra code to the transformer to verify if its loaded and the alfresco dont run so it is loaded .can any one help me plz did i miss sth ?
