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https://issues.apache.org/jira/browse/PDFBOX-1442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13883143#comment-13883143
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Tilman Hausherr commented on PDFBOX-1442:
-----------------------------------------
That file has several problems, one of them are lines like this one:
{code}
<</Coords[0 240 0 240]/ColorSpace/DeviceRGB/ShadingType 2/Extend[true
true]/Function 3 0 R>>
{code}
The coords entry has identical coordinates. See p. 310 of the 1.7 spec, it will
result in a divide by zero. As a first step, I added this before "new
AxialShadingPaint" at two places:
{code}
float [] coords = ((PDShadingType2) shading).getCoords().toFloatArray();
if (coords[0] == coords[2] && coords[1] == coords[3])
{
LOG.error("ShadingType2: coordinates are identical");
return null;
}
{code}
After this change, the image is less bad (but still useless :-) )
> bar chart converted from PDF is totally a black area.
> -----------------------------------------------------
>
> Key: PDFBOX-1442
> URL: https://issues.apache.org/jira/browse/PDFBOX-1442
> Project: PDFBox
> Issue Type: Bug
> Components: PDFReader
> Affects Versions: 1.7.1
> Reporter: James Zhou
> Labels: shadingpattern
> Attachments: clientfocus.PNG, clientfocus.pdf
>
>
> The bar charts converted from PDF is totally a black area. The code is as
> following:
>
> PDFImageWriter imageWriter = new PDFImageWriter();
> boolean success = imageWriter.writeImage(document,
> imageFormat, password,
> startPage, endPage, outputPrefix, imageType,
> resolution);
> if (!success)
> {
> logger.error( "Error: no writer found for image format
> '"
> + imageFormat + "'" );
> System.exit(1);
>
> }
> I will attach the ppt and PNG files later
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