Bugzilla – Bug 5824
pdftocairo rasterises some vector documents on Windows
Last modified: 2016-06-03 07:42:37
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There are some documents (or part of documents) that Poppler's pdftocairo
rasterises on Windows instead of keeping them in a vector format. This causes a
reduction in quality, colour mismatches and generally makes the print job
Created an attachment (id=677) [details]
lemon jelly sample
First sample, taken from here:
Created an attachment (id=678) [details]
sunny farm invoice sample
Second sample, from here:
Note that both samples are rendered properly as vector images when using
SumatraPDF, as well as pdftocairo's other backends and with pdftops.
More testing shows that the lemon jelly document not always are rasterized.
Seems to be a dependent of which print driver is used.
Direct printing using "HP Laserjet 500 color MFP M570dn UPD PS" driver will
make pdftocairo to only rasterize the fifth graphical symbol on first row. See
attachment "minimal rasterized".
Direct printing using "HP Laserjet 500 color MFP M570 PCL6" driver, the results
is 90% rasterized image. See attachment "90% rasterized". You can see in the
scan the bounding box for the rasterization is almost the full graphics. Text
around is vectorized.
Created an attachment (id=711) [details]
Not fully rasterized
Created an attachment (id=712) [details]
(In reply to comment #5)
> Direct printing using "HP Laserjet 500 color MFP M570dn UPD PS" driver will
> make pdftocairo to only rasterize the fifth graphical symbol on first row. See
> attachment "minimal rasterized".
As you can see here, the printer get confused of gradients and masking and
renders those parts wrong. Very broken results.