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https://issues.apache.org/jira/browse/PDFBOX-3734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr closed PDFBOX-3734.
-----------------------------------
Resolution: Not A Problem
> out of memory issue when convert scaned pdf to image
> ----------------------------------------------------
>
> Key: PDFBOX-3734
> URL: https://issues.apache.org/jira/browse/PDFBOX-3734
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.5
> Environment: win7 64bit, jdk 1.7 64bit
> Reporter: Yachun Miao
> Labels: how-to
>
> i had a scaned pdf file which just 2.8M, when try pdf to image feature, i get
> OOM with -Xmx200m:
> {color:red}
> at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:92)
> at
> java.awt.image.ComponentSampleModel.createDataBuffer(ComponentSampleModel.java:415)
> at
> sun.awt.image.ByteInterleavedRaster.<init>(ByteInterleavedRaster.java:89)
> at
> sun.awt.image.ByteInterleavedRaster.createCompatibleWritableRaster(ByteInterleavedRaster.java:1281)
> at
> sun.awt.image.ByteInterleavedRaster.createCompatibleWritableRaster(ByteInterleavedRaster.java:1292)
> at org.apache.pdfbox.filter.DCTFilter.fromBGRtoRGB(DCTFilter.java:246)
> at org.apache.pdfbox.filter.DCTFilter.decode(DCTFilter.java:171)
> at org.apache.pdfbox.cos.COSInputStream.create(COSInputStream.java:69)
> at org.apache.pdfbox.cos.COSStream.createInputStream(COSStream.java:162)
> at
> org.apache.pdfbox.pdmodel.common.PDStream.createInputStream(PDStream.java:235)
> at
> org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject.<init>(PDImageXObject.java:124)
> at
> org.apache.pdfbox.pdmodel.graphics.PDXObject.createXObject(PDXObject.java:70)
> at
> org.apache.pdfbox.pdmodel.PDResources.getXObject(PDResources.java:409)
> at
> org.apache.pdfbox.contentstream.operator.graphics.DrawObject.process(DrawObject.java:53)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:838)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:495)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:469)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:150)
> at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:206)
> at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:145)
> {color}
> After i enlarge jvm max heap size to 500M, then it works.
> I know pdf rendering is very difficulty, but do we have some manner to avoid
> consumpting so much memory? whatever it is a bit surprized pdfbox use 500M
> memory to handle one page of scaned pdf (total 2.8M). ratio is around 200
> times.
> But as per me, it is ok to decrease some quality of image converted.
> (actually the quality of original image in pdf not good as well. :)). Tell me
> if we do have such methods. I will help try.
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