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https://issues.apache.org/jira/browse/PDFBOX-3876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tilman Hausherr closed PDFBOX-3876.
-----------------------------------
Resolution: Not A Problem
> Setting “overprint=true” for a specific ColorSpace on PDF (not the entire PDF
> Page)
> -----------------------------------------------------------------------------------
>
> Key: PDFBOX-3876
> URL: https://issues.apache.org/jira/browse/PDFBOX-3876
> Project: PDFBox
> Issue Type: Bug
> Reporter: Muthukumar R
> Labels: how-to
>
> I have a requirement to set overprint=true at ColorSpace level on a "PDF"
> (not for the entire PDF Page). I'm trying to solve this using PDFBox.
> Again, I want to apply overprint only for a specific colorSpace (see If
> condition in the sample code below), but
> graphicsState.setStrokingOverprintControl(true); seems to be setting
> overprint for the entire PDF Page (all colorSpaces).
> Here's the sample code. Anyone came across this problem? Am I missing
> something?
> Sample code:
> {code:java}
> public static void fixPdfOverprint(String inputFilePath, String
> outputFilePath) throws IOException {
> final ByteArrayInputStream pdfStream = new
> ByteArrayInputStream(readFileIntoMemory(inputFilePath));
> try(PDDocument document = PDDocument.load(pdfStream)) {
> for (PDPage page : document.getDocumentCatalog().getPages()) {
> try(PDPageContentStream contentStream =
> createPageContentStream(document, page)) {
> PDExtendedGraphicsState graphicsState = new
> PDExtendedGraphicsState();
> PDResources pdResources =
> document.getDocumentCatalog().getPages().get(0).getResources();
> for (COSName cosName : pdResources.getColorSpaceNames()) {
> if(cosName.getName().equals("<my specific
> colorSpace>")) {
> graphicsState.setStrokingOverprintControl(true);
> // Why this is setting for the entire page rathen than just this colorSpace.
> Btw - I confirmed that this if condition is correct.
> }
> }
> contentStream.setGraphicsStateParameters(graphicsState);
> }
> }
> document.save(outputFilePath);
> }
> }
> {code}
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