Comment 121 for bug 150187
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| Adrian Johnson (ajohnson-redneon) wrote | #121 |
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(Get the code!)
The low quality printing in your PDF is a different bug. This bug is about Type 3 fonts being printed as a bitmap. The PDF you attached has no Type 3 fonts.
The reason pages 1 and 4 of your PDF are printed as a bitmap are:
- Firefox is using cairo operators that are not natively supported by PDF on page 1 and 4. I don't think there is any reason that Firefox needs to use anything other than CAIRO_OPERATOR_OVER when printing so I consider this a bug in Firefox.
- As a result cairo embeds a fallback image in the PDF for the region drawn with operators not supported by PDF. But the bounding box of the PDF pattern used to draw the fallback image is set to the page size instead of the image size. This is a bug in cairo.
- When poppler is used to print the PDF via the cairo backend the image becomes a full page image due to the pattern bounding box being set to the page size.