Oops, just noticed that jempbox was specified in my pom. Sorry, fixing that and I'll try the 2.0 code. Thanks again.
-Glen ________________________________________ From: Glen Hein Sent: Tuesday, March 15, 2016 2:53 PM To: [email protected] Subject: Re: NPE when calling TTFSubFont.addCharCode via PDPage.convertToImage I tried 2.0.0-RC3 (http://mvnrepository.com/artifact/org.apache.pdfbox/pdfbox/2.0.0-RC3), but I got an maven error about a missing POM file on one of the dependencies. This is the error I get from maven: Failed to collect dependencies at org.apache.pdfbox:jempbox:jar:2.0.0-RC3: Failed to read artifact descriptor for org.apache.pdfbox:jempbox:jar:2.0.0-RC3: Could not transfer artifact org.apache.pdfbox:jempbox:pom:2.0.0-RC3 from/to forgerock-snapshots-repository (http://maven.forgerock.org/repo/snapshots): Failed to transfer file: http://maven.forgerock.org/repo/snapshots/org/apache/pdfbox/jempbox/2.0.0-RC3/jempbox-2.0.0-RC3.pom. Return code is: 409 , ReasonPhrase:Conflict. -> [Help 1] I can try to find the dependency manually and install it into my local repo. -Glen ________________________________________ From: Tilman Hausherr <[email protected]> Sent: Tuesday, March 15, 2016 2:45 PM To: [email protected] Subject: Re: NPE when calling TTFSubFont.addCharCode via PDPage.convertToImage If possible, try the 2.0 version. Read the migration guide re: converting to images. Tilman Am 15.03.2016 um 22:39 schrieb Glen Hein: > Hello, > > > I'm trying to create a thumbail of a PDF and I'm getting a bunch of NPE > stacktraces when I call PDPage.convertToImage. This only occurs with certain > PDFs. The NPE is being thrown from TTFSubFont.addCharCode. The NPEs are being > logged (99 separate but identical stacktraces), but not passed up to my > calling code. The resulting image is blank (all white). This makes it > difficult for the calling code to detect the error condition. Is this a known > problem? Is there a work-around so the calling code can detect the error? > > > Let me know if you want the actual PDF, and the preferred way to post it to > the list. > > > This is how I'm calling the code: > > > private byte[] generatePdfThumbnail(PDDocument pdfDocument) throws > IOException { > PDPage page = (PDPage) pdfDocument.getDocumentCatalog() > .getAllPages() > .get(0); > > BufferedImage image = page.convertToImage(BufferedImage.TYPE_INT_RGB, > RESOLUTION_DPI); > int largestDimension = Math.max(image.getHeight(), image.getWidth()); > float scalingFactor = IMAGE_HEIGHTWIDTH / largestDimension; > int scaledHeight = (int) (image.getHeight() * scalingFactor); > int scaledWidth = (int) (image.getWidth() * scalingFactor); > > BufferedImage scaledImage = new BufferedImage(scaledWidth, > scaledHeight, > BufferedImage.TYPE_INT_RGB); > Graphics2D graphics = scaledImage.createGraphics(); > graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, > RenderingHints.VALUE_INTERPOLATION_BILINEAR); > graphics.drawImage(image, 0, 0, scaledWidth, scaledHeight, null); > graphics.dispose(); > > try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) { > ImageIOUtil.writeImage(scaledImage, > FORMAT_NAME, > outputStream, > RESOLUTION_DPI, > IMAGE_QUALITY); > return outputStream.toByteArray(); > }http://mvnrepository.com/artifact/org.apache.pdfbox/pdfbox/2.0.0-RC3 > } > > Here is the stacktrace I'm seeing: > > > Mar 15, 2016 1:48:12 PM org.apache.pdfbox.util.PDFStreamEngine processOperator > WARNING: java.lang.NullPointerException > java.lang.NullPointerException > at org.apache.fontbox.ttf.TTFSubFont.addCharCode(TTFSubFont.java:106) > at org.apache.fontbox.ttf.TTFSubFont.<init>(TTFSubFont.java:95) > at > org.apache.pdfbox.pdmodel.font.PDTrueTypeFont.rebuildTTF(PDTrueTypeFont.java:550) > at > org.apache.pdfbox.pdmodel.font.PDTrueTypeFont.getawtFont(PDTrueTypeFont.java:478) > at > org.apache.pdfbox.pdmodel.font.PDSimpleFont.drawString(PDSimpleFont.java:110) > at > org.apache.pdfbox.pdfviewer.PageDrawer.processTextPosition(PageDrawer.java:260) > at > org.apache.pdfbox.util.PDFStreamEngine.processEncodedText(PDFStreamEngine.java:504) > at org.apache.pdfbox.util.operator.ShowText.process(ShowText.java:56) > at > org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:562) > at > org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:269) > at > org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:236) > at > org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:216) > at > org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:139) > at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:801) > at > ddf.catalog.transformer.input.pdf.PdfInputTransformer.generatePdfThumbnail(PdfInputTransformer.java:170) > at > ddf.catalog.transformer.input.pdf.PdfInputTransformer.generatePdfThumbnail(PdfInputTransformer.java:162) > ... > > > Thanks in advance, > > Glen > > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
