[ https://issues.apache.org/jira/browse/PDFBOX-5526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andreas Lehmkühler updated PDFBOX-5526: --------------------------------------- Fix Version/s: 3.0.0 PDFBox > Apply subsampling and region to masks > ------------------------------------- > > Key: PDFBOX-5526 > URL: https://issues.apache.org/jira/browse/PDFBOX-5526 > Project: PDFBox > Issue Type: Improvement > Components: Rendering > Affects Versions: 2.0.26 > Reporter: Velislava Yanchina > Assignee: Andreas Lehmkühler > Priority: Trivial > Fix For: 2.0.28, 3.0.0 PDFBox > > > When {{{}{}}}`PDImageXObject.{{{}getImage()`{}}} gets invoked with > subsampling and region, internally it loads the entire mask into memory: > [https://github.com/apache/pdfbox/blob/961c052d52dd9ab2dd3d7cd762a5046e5cc85a91/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/image/PDImageXObject.java#L465] > and applies the entire mask on the subsampled image. > Which is extra work and can cause `OOM` exceptions. > The proposed optimisation is to pass `region` and `subsampling` params to > `PDImageXObject.getOpaqueImage() `here - > [https://github.com/apache/pdfbox/blob/961c052d52dd9ab2dd3d7cd762a5046e5cc85a91/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/image/PDImageXObject.java#L548] > such that masks are also subsampled before applying them... -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@pdfbox.apache.org For additional commands, e-mail: dev-h...@pdfbox.apache.org