KillerPDF always prints double-sided regardless of the "Print on both sides" setting

[vukt28]

Hi everyone
I'm having an issue when printing documents with KillerPDF.

Whenever I print a document using KillerPDF, it always prints double-sided, regardless of whether I check or uncheck the "Print on both sides" option in the print dialog.

I've tried both options:

"Print on both sides" enabled → prints double-sided
"Print on both sides" disabled → still prints double-sided

Interestingly, if I open the same PDF file in Microsoft Edge and print it, I can print single-sided without any problem.

Has anyone else experienced this issue with KillerPDF?

Is there any setting in KillerPDF that controls duplex/double-sided printing, or a configuration I might be missing?

Any help would be greatly appreciated. Thanks!

[SteveTheKiller]

Thanks for reporting this. I found the cause.

When "Print on both sides" is checked, KillerPDF explicitly enables duplex printing.
When it is unchecked, KillerPDF currently leaves the printer driver's default setting in place.
If the driver defaults to duplex, it still prints on both sides. How embarrassing!

I have opened issue #282 to track the fix for 1.8.1.
KillerPDF will explicitly request one-sided printing whenever the option is unchecked.

For future bug reports, please open an issue instead of starting a discussion.
Issues are much easier for me to track through testing and release.

[vukt28]

Thank you very much for looking into this and finding the cause so quickly!

That makes perfect sense. I really appreciate you taking the time to investigate and open an issue to track the fix for 1.8.1.

And noted about using Issues for future bug reports. Thanks again for your help and for the great work on KillerPDF!