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https://issues.apache.org/jira/browse/PDFBOX-5621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17732684#comment-17732684
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Tilman Hausherr commented on PDFBOX-5621:
-----------------------------------------
The cause is {{processSoftMask}}, it doesn't save textMatrix. The softmask has
text and when encountering ET, the textMatrix is reset to null. In
{{processType3Stream()}} we're taking care of this. It's really surprising that
this hasn't hit us all these years.
> NullPointerException in PDFStreamEngine.showText
> ------------------------------------------------
>
> Key: PDFBOX-5621
> URL: https://issues.apache.org/jira/browse/PDFBOX-5621
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.28
> Environment: Windows 10/11, openjdk 13.0.1
> Reporter: Robert Verheus
> Priority: Major
> Fix For: 2.0.29, 3.0.0 PDFBox
>
> Attachments: A3 poster.pdf
>
>
> I'm trying to print a pdf with PDFBox (version 2.0.28) which contains one
> page.
> The pdf looks ok when I open it in Acrobat reader.
> The code to print is the following:
> {code:java}
> PDDocument doc = PDDocument.load(pdffile);
> m_printjob = PrinterJob.getPrinterJob();
> m_printjob.setPrintService(service);
> m_printjob.setJobName(pdffile.getName());
> m_printjob.setCopies(1);
> Paper paper = m_printjob.defaultPage().getPaper(); //default page format of
> the printer
> paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight()); // no
> margins
> PageFormat pageFormat = printjob.getPageFormat(null);
> pageFormat.setPaper(paper);
> m_printjob.setPageable(...); //slightly altered PDFPageable to better suit
> our scaling/orientation needs.
> PrintRequestAttributeSet attr = new HashPrintRequestAttributeSet();
> attr.add(Sides.ONE_SIDED);
> m_printjob.print(attr); {code}
> Result is:
> {noformat}
> 13-06-2023 15:37:28,244 ERROR - java.lang.NullPointerException
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.showText(PDFStreamEngine.java:793)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.showTextStrings(PDFStreamEngine.java:681)
> at
> org.apache.pdfbox.contentstream.operator.text.ShowTextAdjusted.process(ShowTextAdjusted.java:53)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:966)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:541)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:516)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:155)
> at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:284)
> at
> org.apache.pdfbox.rendering.PDFRenderer.renderPageToGraphics(PDFRenderer.java:465)
> at org.apache.pdfbox.printing.PDFPrintable.print(PDFPrintable.java:264)
> at
> java.desktop/sun.print.RasterPrinterJob.printPage(RasterPrinterJob.java:2275)
> at
> java.desktop/sun.print.RasterPrinterJob.print(RasterPrinterJob.java:1654)
> at
> com.xafax.easyprint.was.print.UploadJobServlet$3.run(UploadJobServlet.java:1856)
> at java.base/java.lang.Thread.run(Thread.java:830){noformat}
> I have attached the pdf which causes this NullPointerException.
>
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