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Contact sheet: Paper size and DPI

Posted: Mon Mar 27, 2017 12:42 pm
by HanVroon
I am not good at this, so I'm not sure if this is a bug or supposed to be so.

I select paper size A4.
I select pixels as unit to see what's going on.
I leave DPI at the default 72.
I see that width x height will be 595 x 842.
I switch to cm to see that the size is A4, and back to pixels.
Looking at the preview it looks OK, low resolution.

I change DPI to 300 because I want sharper output or whatever.
The width x height will still be 595 x 842.
I switch to cm to see that the size changed to 5,04 x 7,13 cm and switch back to pixels.
The preview will look the same.
Only when I select paper size A4 again, the width x height changes to 2481 x 3507.
Is that correct or wrong?

Suggestion: a bullet in front of the last selected paper size would be nice...

Re: Contact sheet: Paper size and DPI

Posted: Mon Mar 27, 2017 1:00 pm
by xnview
DPI value will not change the pixel size if you use pixel to enter sheet size

Re: Contact sheet: Paper size and DPI

Posted: Mon Mar 27, 2017 2:44 pm
by helmut
xnview wrote:DPI value will not change the pixel size if you use pixel to enter sheet size
Is "dpi" needed at all when setting output size by pixel? Is the dpi value written into the output file?

Re: Contact sheet: Paper size and DPI

Posted: Mon Mar 27, 2017 2:47 pm
by xnview
helmut wrote:
xnview wrote:DPI value will not change the pixel size if you use pixel to enter sheet size
Is "dpi" needed at all when setting output size by pixel? Is the dpi value written into the output file?
yes the dpi is used for bitmap file

Re: Contact sheet: Paper size and DPI

Posted: Thu Mar 30, 2017 6:16 pm
by helmut
HanVroon, can this bug report be closed?
HanVroon wrote:Suggestion: a bullet in front of the last selected paper size would be nice...
For this suggestion we should create a topic in "Suggestions". Can you do it or do you want me to create one?

Re: Contact sheet: Paper size and DPI

Posted: Fri Mar 31, 2017 9:20 am
by HanVroon
Hi Helmut,

I think this one can be closed. I wil create a suggestion.

Regards,
Han

Re: Contact sheet: Paper size and DPI

Posted: Fri Mar 31, 2017 9:33 am
by helmut
HanVroon wrote:I think this one can be closed. I wil create a suggestion.
Good. Closed.