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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2018/03/07 06:43:00 UTC
[jira] [Updated] (PDFBOX-4144) Pdf to image conversion not
releasing memory after conversion
[ https://issues.apache.org/jira/browse/PDFBOX-4144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr updated PDFBOX-4144:
------------------------------------
Description:
I have written a program that accepts pdf and convert it to image. Please see the below code for your reference.
{code:java}
ByteArrayInputStream ipStream = new ByteArrayInputStream(document.getFile().getBytes());
PDDocument documentUploaded = PDDocument.load(ipStream,MemoryUsageSetting.setupTempFileOnly());
documentUploaded.setResourceCache(new MyResourceCache());
//Disabled a resource cache
PDFRenderer pdfRenderer = new PDFRenderer(documentUploaded);
int pageCounter = 0;
for (PDPage page : documentUploaded.getPages())
{
BufferedImage bim = pdfRenderer.renderImageWithDPI(pageCounter, 300, ImageType.RGB);
pageCounter = pageCounter + 1;
// Some code here
bim.flush();
bim = null;
}
documentUploaded.close();
{code}
After/Before conversion i printed heap size used by using Runtime.getRuntime().totalMemory() . Also I checked top command to see percentage of memory used.But in both cases the memory keeps increasing after each conversion and does not release used memory.After tomcat restart I get cleaned memory.
was:
I have written a program that accepts pdf and convert it to image. Please see the below code for your reference.
ByteArrayInputStream ipStream = new ByteArrayInputStream(document.getFile().getBytes());
PDDocument documentUploaded = PDDocument.load(ipStream,MemoryUsageSetting.setupTempFileOnly());
documentUploaded.setResourceCache(new MyResourceCache());
//Disabled a resource cache
PDFRenderer pdfRenderer = new PDFRenderer(documentUploaded);
int pageCounter = 0;
for (PDPage page : documentUploaded.getPages())
{
BufferedImage bim = pdfRenderer.renderImageWithDPI(pageCounter, 300, ImageType.RGB);
pageCounter = pageCounter + 1;
// Some code here
bim.flush();
bim = null;
}
documentUploaded.close();
After/Before conversion i printed heap size used by using Runtime.getRuntime().totalMemory() . Also I checked top command to see percentage of memory used.But in both cases the memory keeps increasing after each conversion and does not release used memory.After tomcat restart I get cleaned memory.
> Pdf to image conversion not releasing memory after conversion
> -------------------------------------------------------------
>
> Key: PDFBOX-4144
> URL: https://issues.apache.org/jira/browse/PDFBOX-4144
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing, Rendering
> Affects Versions: 2.0.8
> Environment: Apache Tomcat/8.0.33, Linux, JDK 1.8
> Reporter: Sachin Mali
> Priority: Major
>
> I have written a program that accepts pdf and convert it to image. Please see the below code for your reference.
> {code:java}
> ByteArrayInputStream ipStream = new ByteArrayInputStream(document.getFile().getBytes());
> PDDocument documentUploaded = PDDocument.load(ipStream,MemoryUsageSetting.setupTempFileOnly());
>
> documentUploaded.setResourceCache(new MyResourceCache());
> //Disabled a resource cache
> PDFRenderer pdfRenderer = new PDFRenderer(documentUploaded);
> int pageCounter = 0;
> for (PDPage page : documentUploaded.getPages())
> {
> BufferedImage bim = pdfRenderer.renderImageWithDPI(pageCounter, 300, ImageType.RGB);
> pageCounter = pageCounter + 1;
>
> // Some code here
> bim.flush();
> bim = null;
> }
> documentUploaded.close();
>
> {code}
> After/Before conversion i printed heap size used by using Runtime.getRuntime().totalMemory() . Also I checked top command to see percentage of memory used.But in both cases the memory keeps increasing after each conversion and does not release used memory.After tomcat restart I get cleaned memory.
>
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