Quote:
Originally Posted by Divingduck
This is a comon problem with some PDF printer (with the internal Windows 10 printer too). The problem are the embedded pictures. In calibre you can not define directly a general output dpi resolution for pictures. The only way is, as fare I know, via Common options -->Page layout -->Output profile. There you can choose a device that resize the resolution matching best to your device.
The other way around is to use PDF tools like Arcobat, free clones etc. to reduce the dpi-resolution to what ever you define as appropriate in an additional step.
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Mmm, I think the problem is not dpi. The picture whcih provided were scanned from the book. So it must exist the white edge. And if I change it to fit k5, the word will be very small. So I hope to use Duokan