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https://issues.apache.org/jira/browse/PDFBOX-955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-955:
-----------------------------------
Description:
I wrote a test application using org.apache.pdfbox.ExtractImages to... extract
images as PNG. (This is the start of something bigger, which involves making a
statistic about the content of over a million pages within PDF files) However
all images I get are all black or all white when I test on our own PDF files. I
did get correct images from a file that had color images. To extract, I tried
page.convertToImage() and then writing with ImageIO.write(), but I also tried
using PDFImageWriter, neither had success for b/w images.
The sample PDF is not confidential; it does give a warning "getRGBImage
returned NULL" but other PDFs that don't give the warning (but are
confidential) also fail.
was:
I wrote a test application using org.apache.pdfbox.ExtractImages to... extract
images as PNG. (This is the start of something bigger, which involves making a
statistic about the content of over a million pages within PDF files) However
all images I get are all black or all white when I test on our own PDF files. I
did get correct images from a file that had color images. To extract, I tried
page.convertToImage() and then writing with ImageIO.write(), but I also tried
using PDFImageWriter, neither had success for b/w images.
If I can attach a file in the next window I will do it. The sample PDF is not
confidential; it does give a warning "getRGBImage returned NULL" but other PDFs
that don't give the warning (but are confidential) also fail.
Environment: Windows XP prof, Java 1.6.0_22, Netbeans 6.9.1 (was: Windows
XP)
> Can't extract b/w images from PDF
> ---------------------------------
>
> Key: PDFBOX-955
> URL: https://issues.apache.org/jira/browse/PDFBOX-955
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 1.4.0
> Environment: Windows XP prof, Java 1.6.0_22, Netbeans 6.9.1
> Reporter: Tilman Hausherr
> Priority: Blocker
> Labels: extract
> Attachments: ExtractImages.java, d0000040-01.png, d0000040.pdf
>
>
> I wrote a test application using org.apache.pdfbox.ExtractImages to...
> extract images as PNG. (This is the start of something bigger, which involves
> making a statistic about the content of over a million pages within PDF
> files) However all images I get are all black or all white when I test on our
> own PDF files. I did get correct images from a file that had color images. To
> extract, I tried page.convertToImage() and then writing with ImageIO.write(),
> but I also tried using PDFImageWriter, neither had success for b/w images.
> The sample PDF is not confidential; it does give a warning "getRGBImage
> returned NULL" but other PDFs that don't give the warning (but are
> confidential) also fail.
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