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https://issues.apache.org/jira/browse/PDFBOX-3612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15714494#comment-15714494
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André Heuner commented on PDFBOX-3612:
--------------------------------------
First of all thanks for your quick reply. May be I missed an important log line
to mention:
[2016-12-02-08:24:46] WARN [org.apache.pdfbox.cos.COSDocument] Warning: You
did not close a PDF Document
To me the messages above seemed to be related to this warning. May be I'm wrong.
Strange thing is: this message is shown if I omit the overlay.close() command.
If overlay.close() is called I get the follwing error:
{code}
[2016-12-02-09:38:38] ERROR
[com.remondis.rums.ip.service.activities.InvoiceSender] Error saving file:
COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument
has been closed?
java.io.IOException: COSStream has been closed and cannot be read. Perhaps its
enclosing PDDocument has been closed?
at org.apache.pdfbox.cos.COSStream.checkClosed(COSStream.java:77)
at
org.apache.pdfbox.cos.COSStream.createRawInputStream(COSStream.java:125)
at
org.apache.pdfbox.pdfwriter.COSWriter.visitFromStream(COSWriter.java:1192)
at org.apache.pdfbox.cos.COSStream.accept(COSStream.java:383)
at org.apache.pdfbox.cos.COSObject.accept(COSObject.java:158)
at
org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:530)
at
org.apache.pdfbox.pdfwriter.COSWriter.doWriteObjects(COSWriter.java:459)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:443)
at
org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1088)
at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:419)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1359)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1246)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1146)
{code}
I'll precice this issue and reopen it.
> 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}
> PDDocument pdfDocument = PDDocument.load(new
> PDDocument pdfCopy = Pdf.addWatermark(pdfDocument);
>
> pdfDocument.close();
> pdfCopy.close();
> ....
> 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:\\Software\\watermark.pdf");
> }
>
> Overlay overlay = new Overlay();
> overlay.setInputPDF(document);
> overlay.setOverlayPosition(Overlay.Position.FOREGROUND);
>
> PDDocument result = overlay.overlay(overlayGuide);
>
> document.close();
> 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}
> [2016-12-01-09:48:51] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-01-09:48:51] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-01-09:48:51] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-01-09:48:51] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-01-09:48:51] DEBUG [org.apache.pdfbox.io.ScratchFileBuffer]
> ScratchFileBuffer not closed!
> [2016-12-01-09:48:51] 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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