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On Dec 13, 2014, at 6:07 PM, Andreas Lehmkühler (JIRA) wrote: > > [ > https://issues.apache.org/jira/browse/PDFBOX-2512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14245321#comment-14245321 > ] > > Andreas Lehmkühler commented on PDFBOX-2512: > -------------------------------------------- > > I've just realized that the code in the trunk is different. We should > consider some similar solution when working PDFBOX-2515. > >> OutOfMemory while signing large documents >> ----------------------------------------- >> >> Key: PDFBOX-2512 >> URL: https://issues.apache.org/jira/browse/PDFBOX-2512 >> Project: PDFBox >> Issue Type: Bug >> Components: Parsing, Signing >> Affects Versions: 1.8.7 >> Reporter: Thomas Chojecki >> Assignee: Thomas Chojecki >> Fix For: 1.8.8 >> >> Attachments: keystore.p12 >> >> >> While working with large documents, we found some memory issues. >> 1. The method close() in the COSDocument, clones the objectpool and does not >> clean it properly. The cloning in getObjects() cause a OutOfMemory exception. >> 2.The COSWriter copy the whole pdf into the memory for signing and does not >> use BufferedInputStream for the FileInputStream which also has a big >> performance impact. (PDFBOX-1798) >> 3. The cloning of COSStreams cause a OutOfMemory exception >> I used the CreateSignature example with a about 150 MB big document from >> here: >> https://cdn-reichelt.de/bilder/downloads/reichelt_01-2015_DE_B_HQ.pdf >> Additionaly I add a RandomAccessFile to the PDDocument.load in the >> CreateSignature class. >> PDDocument doc = PDDocument.load(document,new RandomAccessFile(new >> File("d:\\temp.bin"), "rw")); (this prevent the OOM for the third case) >> The use of a BuffedInputStream in case two, will increase the signing speed >> from more than 5 minutes to less than 1 minute. > > > > -- > This message was sent by Atlassian JIRA > (v6.3.4#6332) > Sherif A. Bishr Chairman AKNAN Company for Data Management Services T +20 2 3347 5258 l F +20 2 3346 0537 M +20 122 215 4059 Website: www.aknan-company.com
