[
https://issues.apache.org/jira/browse/PDFBOX-5462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17555936#comment-17555936
]
Marian Ion edited comment on PDFBOX-5462 at 6/18/22 5:07 PM:
-------------------------------------------------------------
Here's what *Eclipse Memory Analyzer* finds on a heap dump (and trying to
watermark a 4k PDF, the same 4 pages repeated 1024 times):
{code:java}
main
at java.lang.OutOfMemoryError.<init>()V (OutOfMemoryError.java:48)
at java.nio.HeapByteBuffer.duplicate()Ljava/nio/ByteBuffer;
(HeapByteBuffer.java:131)
at
org.apache.pdfbox.io.RandomAccessReadBuffer.<init>(Lorg/apache/pdfbox/io/RandomAccessReadBuffer;)V
(RandomAccessReadBuffer.java:135)
at
org.apache.pdfbox.io.RandomAccessReadBuffer.createView(JJ)Lorg/apache/pdfbox/io/RandomAccessReadView;
(RandomAccessReadBuffer.java:363)
at
org.apache.pdfbox.pdfparser.COSParser.createRandomAccessReadView(JJ)Lorg/apache/pdfbox/io/RandomAccessReadView;
(COSParser.java:585)
at
org.apache.pdfbox.cos.COSDocument.createCOSStream(Lorg/apache/pdfbox/cos/COSDictionary;JJ)Lorg/apache/pdfbox/cos/COSStream;
(COSDocument.java:185)
at
org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(Lorg/apache/pdfbox/cos/COSDictionary;)Lorg/apache/pdfbox/cos/COSStream;
(COSParser.java:914)
at
org.apache.pdfbox.pdfparser.COSParser.parseFileObject(Ljava/lang/Long;Lorg/apache/pdfbox/cos/COSObjectKey;)Lorg/apache/pdfbox/cos/COSBase;
(COSParser.java:693)
at
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(Lorg/apache/pdfbox/cos/COSObjectKey;Z)Lorg/apache/pdfbox/cos/COSBase;
(COSParser.java:615)
at
org.apache.pdfbox.pdfparser.COSParser.dereferenceCOSObject(Lorg/apache/pdfbox/cos/COSObject;)Lorg/apache/pdfbox/cos/COSBase;
(COSParser.java:573)
at org.apache.pdfbox.cos.COSObject.getObject()Lorg/apache/pdfbox/cos/COSBase;
(COSObject.java:121)
at
org.apache.pdfbox.cos.COSDictionary.getDictionaryObject(Lorg/apache/pdfbox/cos/COSName;)Lorg/apache/pdfbox/cos/COSBase;
(COSDictionary.java:183)
at org.apache.pdfbox.pdmodel.PDPage.hasContents()Z (PDPage.java:218)
at
org.apache.pdfbox.pdmodel.PDPageContentStream.<init>(Lorg/apache/pdfbox/pdmodel/PDDocument;Lorg/apache/pdfbox/pdmodel/PDPage;Lorg/apache/pdfbox/pdmodel/PDPageContentStream$AppendMode;ZZLorg/apache/pdfbox/pdmodel/common/PDStream;Lorg/apache/pdfbox/pdmodel/PDResources;)V
(PDPageContentStream.java:140)
at
org.apache.pdfbox.pdmodel.PDPageContentStream.<init>(Lorg/apache/pdfbox/pdmodel/PDDocument;Lorg/apache/pdfbox/pdmodel/PDPage;Lorg/apache/pdfbox/pdmodel/PDPageContentStream$AppendMode;ZZ)V
(PDPageContentStream.java:123)
at
PdfboxWatermark.addWatermark(Ljava/lang/String;Lorg/apache/pdfbox/pdmodel/PDDocument;)I
(PdfboxWatermark.java:57)
at
PdfboxWatermark.setWatermarkOnContent(Ljava/lang/String;Ljava/io/InputStream;Ljava/io/OutputStream;)I
(PdfboxWatermark.java:37)
at WatermarkPDF.main([Ljava/lang/String;)V (WatermarkPDF.java:29)
{code}
was (Author: JIRAUSER291146):
Here's what *Eclipse Memory Analyzer* finds on a heap dump:
{code:java}
main
at java.lang.OutOfMemoryError.<init>()V (OutOfMemoryError.java:48)
at java.nio.HeapByteBuffer.duplicate()Ljava/nio/ByteBuffer;
(HeapByteBuffer.java:131)
at
org.apache.pdfbox.io.RandomAccessReadBuffer.<init>(Lorg/apache/pdfbox/io/RandomAccessReadBuffer;)V
(RandomAccessReadBuffer.java:135)
at
org.apache.pdfbox.io.RandomAccessReadBuffer.createView(JJ)Lorg/apache/pdfbox/io/RandomAccessReadView;
(RandomAccessReadBuffer.java:363)
at
org.apache.pdfbox.pdfparser.COSParser.createRandomAccessReadView(JJ)Lorg/apache/pdfbox/io/RandomAccessReadView;
(COSParser.java:585)
at
org.apache.pdfbox.cos.COSDocument.createCOSStream(Lorg/apache/pdfbox/cos/COSDictionary;JJ)Lorg/apache/pdfbox/cos/COSStream;
(COSDocument.java:185)
at
org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(Lorg/apache/pdfbox/cos/COSDictionary;)Lorg/apache/pdfbox/cos/COSStream;
(COSParser.java:914)
at
org.apache.pdfbox.pdfparser.COSParser.parseFileObject(Ljava/lang/Long;Lorg/apache/pdfbox/cos/COSObjectKey;)Lorg/apache/pdfbox/cos/COSBase;
(COSParser.java:693)
at
org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(Lorg/apache/pdfbox/cos/COSObjectKey;Z)Lorg/apache/pdfbox/cos/COSBase;
(COSParser.java:615)
at
org.apache.pdfbox.pdfparser.COSParser.dereferenceCOSObject(Lorg/apache/pdfbox/cos/COSObject;)Lorg/apache/pdfbox/cos/COSBase;
(COSParser.java:573)
at org.apache.pdfbox.cos.COSObject.getObject()Lorg/apache/pdfbox/cos/COSBase;
(COSObject.java:121)
at
org.apache.pdfbox.cos.COSDictionary.getDictionaryObject(Lorg/apache/pdfbox/cos/COSName;)Lorg/apache/pdfbox/cos/COSBase;
(COSDictionary.java:183)
at org.apache.pdfbox.pdmodel.PDPage.hasContents()Z (PDPage.java:218)
at
org.apache.pdfbox.pdmodel.PDPageContentStream.<init>(Lorg/apache/pdfbox/pdmodel/PDDocument;Lorg/apache/pdfbox/pdmodel/PDPage;Lorg/apache/pdfbox/pdmodel/PDPageContentStream$AppendMode;ZZLorg/apache/pdfbox/pdmodel/common/PDStream;Lorg/apache/pdfbox/pdmodel/PDResources;)V
(PDPageContentStream.java:140)
at
org.apache.pdfbox.pdmodel.PDPageContentStream.<init>(Lorg/apache/pdfbox/pdmodel/PDDocument;Lorg/apache/pdfbox/pdmodel/PDPage;Lorg/apache/pdfbox/pdmodel/PDPageContentStream$AppendMode;ZZ)V
(PDPageContentStream.java:123)
at
PdfboxWatermark.addWatermark(Ljava/lang/String;Lorg/apache/pdfbox/pdmodel/PDDocument;)I
(PdfboxWatermark.java:57)
at
PdfboxWatermark.setWatermarkOnContent(Ljava/lang/String;Ljava/io/InputStream;Ljava/io/OutputStream;)I
(PdfboxWatermark.java:37)
at WatermarkPDF.main([Ljava/lang/String;)V (WatermarkPDF.java:29)
{code}
> OutOfMemoryError when watermaking in 3.0.0-RC1
> ----------------------------------------------
>
> Key: PDFBOX-5462
> URL: https://issues.apache.org/jira/browse/PDFBOX-5462
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 3.0.0 PDFBox
> Reporter: Marian Ion
> Priority: Major
>
> I am using the Maven *3.0.0-RC1* version and I encounter the following error
> when watermarking a 5120 pages file:
> {quote} java.lang.OutOfMemoryError: Java heap space: failed reallocation of
> scalar replaced objects
> {quote}
>
> However, the *2.0.26* version code works without problem!
> The code is basically this :
> {code:java}
> private static final PDFont PDF_FONT = PDType1Font.HELVETICA;
> memoryUsageSetting = MemoryUsageSetting.setupMixed(2 * ONE_GIGA, 40 *
> ONE_GIGA);
> //try (PDDocument pdfDocument = PDDocument.load(is, memoryUsageSetting)) {
> // 2.0.26
> try (PDDocument pdfDocument = Loader.loadPDF(inputStream,
> memoryUsageSetting)) { // 3.0.0-RC1
> int nbPages = addWatermark(watermarkText, pdfDocument);
> pdfDocument.save(os);
> }
> ...
> private int addWatermark(String watermarkText, PDDocument document) throws
> IOException {
> int numberOfPages = document.getNumberOfPages();
> System.out.printf("Start adding watermark on a %d pages PDF
> document%n", numberOfPages);
> long start = System.nanoTime();
> int pageIndex = 0;
> for(PDPage page : document.getPages()) {
> ++pageIndex;
> try (PDPageContentStream cs = new PDPageContentStream(document,
> page, PDPageContentStream.AppendMode.APPEND, true, true)) {
> float width = page.getMediaBox().getWidth();
> float height = page.getMediaBox().getHeight();
> int rotation = page.getRotation();
> switch(rotation) {
> case 90:
> width = page.getMediaBox().getHeight();
> height = page.getMediaBox().getWidth();
>
> cs.transform(Matrix.getRotateInstance(Math.toRadians(90), height, 0));
> break;
> case 180:
>
> cs.transform(Matrix.getRotateInstance(Math.toRadians(180), width, height));
> break;
> case 270:
> width = page.getMediaBox().getHeight();
> height = page.getMediaBox().getWidth();
>
> cs.transform(Matrix.getRotateInstance(Math.toRadians(270), 0, width));
> break;
> default:
> break;
> }
> double stringWidth =
> (double)PDF_FONT.getStringWidth(watermarkText) / 1000 * FONT_HEIGHT;
> double diagonalLength = Math.sqrt((double)width * width +
> (double)height * height);
> double angle = Math.atan2(height, width);
> cs.transform(Matrix.getRotateInstance(angle, 0, 0));
> cs.setFont(PDF_FONT, (float)FONT_HEIGHT);
> //cs.setRenderingMode(RenderingMode.STROKE); // for "hollow"
> effect
> PDExtendedGraphicsState gs = new PDExtendedGraphicsState();
> gs.setNonStrokingAlphaConstant(0.2f);
> gs.setStrokingAlphaConstant(0.2f);
> gs.setBlendMode(BlendMode.MULTIPLY);
> cs.setGraphicsStateParameters(gs);
> // some API weirdness here. When int, range is 0..255.
> // when float, this would be 0..1f
> cs.setNonStrokingColor(0f, 0, 0);
> cs.setStrokingColor(0f, 0, 0); // black
> float x = (float)((diagonalLength - stringWidth) / 2); //
> "horizontal" position in rotated world
> float y = (float)(-FONT_HEIGHT / 4); // 4 is a trial-and-error
> thing, this lowers the text a bit
> cs.beginText();
> cs.newLineAtOffset(x, y);
> cs.showText(watermarkText);
> cs.endText();
> } finally {
> ...
> }
> return numberOfPages;
> }
> {code}
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