[PDFBOX-955] Can't extract b/w images from PDF

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.6.0
• Labels: extract
• Environment: Windows XP prof, Java 1.6.0_22, Netbeans 6.9.1
• Assignee: Andreas Lehmkühler
• Reporter: Tilman Hausherr
• Created: 02/Feb/11 13:57
• Updated: 18/Aug/13 16:35
• Resolved: 18/Aug/13 16:35

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.

Issue Links

• is duplicated by: PDFBOX-1018 Remove imageIO dependency (was: PDPage convertToImage bug creates white images from black and white pdf files.)
• is duplicated by: PDFBOX-794 PDPage convertToImage generates white image with no contents