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https://issues.apache.org/jira/browse/PDFBOX-3612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
André Heuner closed PDFBOX-3612.
--------------------------------
Resolution: Not A Bug
The warning was most likely related to incorrect usage of the library.
> ScratchFileBuffer not closed message related to overlay.overlay(overlayGuide);
> ------------------------------------------------------------------------------
>
> Key: PDFBOX-3612
> URL: https://issues.apache.org/jira/browse/PDFBOX-3612
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.3, 2.1.0
> Environment: Windows 7 Professional, Eclipse, JDK 1.8
> Reporter: André Heuner
> Priority: Minor
>
> I'd like to add a watermark to a PDF and have the following code:
> {code:java}
> @Test
> public void testAddWatermark() {
> try {
> // test runs well with n < 3; with n < 10 and w/o
> overlay.close() warnings are shown
> for (int n = 0; n < 10; n++) {
> PDDocument pdfDocument = PDDocument.load(new
> File("C:\\data\\somePdfFile.pdf"));
> PDDocument pdfCopy = Pdf.extract(pdfDocument, 1, 1);
> PDDocument watermarkCopy = Pdf.addWatermark(pdfCopy);
>
> ByteArrayOutputStream byteArrayOutputStream = new
> ByteArrayOutputStream();
> // save as bytes; exception in comment thrown here if
> overlay.close() is called
> watermarkCopy.save(byteArrayOutputStream);
> byteArrayOutputStream.close();
>
> watermarkCopy.close();
> pdfCopy.close();
> pdfDocument.close();
> }
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> ....
> public static PDDocument addWatermark(PDDocument document) {
> try {
> HashMap<Integer, String> overlayGuide = new HashMap<Integer,
> String>();
>
> for(int no = 0; no < document.getNumberOfPages(); no++) {
> overlayGuide.put(no +1, "C:\\data\\watermark.pdf");
> }
>
> Overlay overlay = new Overlay();
> overlay.setInputPDF(document);
> overlay.setOverlayPosition(Overlay.Position.FOREGROUND);
>
> PDDocument result = overlay.overlay(overlayGuide);
> // overlay.close();
>
> return result;
>
> } catch (Exception e) {
> log.error("Error while adding watermark: " +e.getMessage(), e);
>
> return document;
> }
> }{code}
> overlay.overlay(...) seems to cause lot's of warnings:
> {code}
> ...
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] WARN [org.apache.pdfbox.cos.COSDocument] Warning: You
> did not close a PDF Document
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] WARN [org.apache.pdfbox.cos.COSDocument] Warning: You
> did not close a PDF Document
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-02-09:55:44] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> ...
> {code}
> Is there anything, that can be done to fix this issue? I tried to close
> anything that is closable - but the issue remains. Or can it safely be
> ignored?
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