[PDFBOX-5464] White areas are rendered red when converting a pdf to png with pdfbox

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.0.26, 3.0.0 PDFBox
• Component/s: Rendering
• Assignee: Unassigned
• Reporter: Kirovj
• Created: 21/Jun/22 09:51
• Updated: 15/May/24 12:11
• Resolved: 15/May/24 12:11

Description

hi

This may be a problem similar to PDFBOX-4470 Red areas around text when converting a pdf to png with pdfbox - ASF JIRA (apache.org)

When I convert a pdf to png files with pdfbox, I find that the backgroud White color was rendered as Red. And this is unusual, I have only one pdf rendered like this. But in this pdf, almost all pages are rendered as Red color.

Here's some of the code that I'm using:

try (PDDocument document = PDDocument.load(new File("example/" + file + ".pdf"))) {
    int numberOfPages = document.getNumberOfPages();
    PDFRenderer renderer = new PDFRenderer(document);
    for (int i = 0; i < numberOfPages; i++) {
        System.out.println("render " + i);
        BufferedImage bufferedImage = renderer.renderImage(i, 2, ImageType.RGB);
        ImageIO.write(bufferedImage, "png", new File("example/" + file + "-" + i + ".png"));
    }
} 

I also tried pdfbox 3.0.0-RC1, but result is the same.

The red png files start at pdf page 3.

Issue Links

• duplicates: PDFBOX-5778 Grayscale JPEG rendered multicolor