[jira] [Comment Edited] (PDFBOX-1735) Convert page pdf to image

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-1735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13784389#comment-13784389 ] 

Tilman Hausherr edited comment on PDFBOX-1735 at 10/2/13 8:32 PM:
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Despite the error message, I still get a rendered image. It is inverted - either this is a bug, or you're working with microfilm scans. The error message indicates that an image there is encoded in the JPG2000 format. The source code looks conflicting whether it is supported or not.


was (Author: tilman):
Despite the stacktrace, I still get a rendered image. It is inverted - either this is a bug, or you're working with microfilms. The error message indicates that an image there is encoded in the JPG2000 format. The source code looks conflicting whether it is supported or not.

> Convert page pdf to image
> -------------------------
>
>                 Key: PDFBOX-1735
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1735
>             Project: PDFBox
>          Issue Type: Bug
>    Affects Versions: 1.8.2
>         Environment: Windows 8
> JDK 1.7
>            Reporter: Paulo R C Mello Junior
>         Attachments: n130567_116-01.png, N130567_116.pdf
>
>
> I'm in the fight to perfectly convert a PDF to an image.
> But the stacktrace below breaks my application!
> ---
> Out 02, 2013 3:22:35 PM org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap getRGBImage
> SEVERE: Something went wrong ... the pixelmap doesn't contain any data.
> Out 02, 2013 3:22:35 PM org.apache.pdfbox.util.operator.pagedrawer.Invoke process
> WARNING: getRGBImage returned NULL
> Out 02, 2013 3:22:35 PM org.apache.pdfbox.util.PDFStreamEngine processOperator
> INFO: unsupported/disabled operation: i
> ---
> I really need to fix this problem in order to succeed in converting
> You know why this error occurs?
> You know how I can fix this error?
> is some dependence of my environment that i forgot? or a failure of PDFBox framewor ?
> Follow my code below:
> ---
> 	public static List<BufferedImage> getPdfPagesAsImages(String pdfPath, int i)
> 			throws FileNotFoundException, IOException {
> 		List<BufferedImage> bImages = new ArrayList<BufferedImage>();
> 		
> 		File f = new File(pdfPath);
> 		if (f.exists()) {
> 		int resolution = 185;
> 		PDDocument pdfDocument = null;
> 		pdfDocument = PDDocument.loadNonSeq(f, null);
> 		if (pdfDocument != null) {
> 			@SuppressWarnings("unchecked")
> 			List<PDPage> pages = (List<PDPage>) pdfDocument
> 					.getDocumentCatalog().getAllPages();
> 			int j = 1;
> 			for (PDPage p : pages) {
> 				System.out.println(j);
> 				BufferedImage convertedImage = p.convertToImage(
> 						BufferedImage.TYPE_INT_BGR , resolution);
> 				saveImageToRepository(i, j, convertedImage);			
> 				j++;
> 				if (isNegativeImage(convertedImage)) {
> 					bImages.add(invertNegativeImage(convertedImage));
> 				} else {
> 					bImages.add(convertedImage);
> 				}
> 				
> 			}
> 			System.out.println(pdfPath +" sucess");
> 		}	
> 		pdfDocument.close();
> 		}else{
> 			System.out.println(pdfPath +" nao existe");
> 		}
> 		return bImages;
> 	}
> 	private static void saveImageToRepository(int i, int j,
> 			BufferedImage convertedImage) throws IOException {
> 		File outputfile = new File("C:/Desenvolvimento/bkp/convertido/" + i + j+ ".png");
> 		ImageIO.write(convertedImage, "png", outputfile);
> 	}
> ---
> I create a list of images
> these images are saved to be loaded in the browser later on a JSF component.
> Thank you!



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