XnView Software

When Image > Set DPI... is used to change the X and Y DPI values of an opened image to values that will result in a change in the aspect ratio of the image, the new aspect value is not immediately displayed and is only visible when the file is saved and reopened.

Shouldn't the new aspect ratio be visible immediately?

A related question: no means to save the DPI change through lossless transformation rather than 'lossy full saving' for JPEG files ?

cday wrote: Wed Sep 13, 2023 10:27 am Shouldn't the new aspect ratio be visible immediately?

Thanks to your detailed description I can reproduce

simon wrote: Wed Sep 13, 2023 10:47 am A related question: no means to save the DPI change through lossless transformation rather than 'lossy full saving' for JPEG files ?

This thread was a bug report, a new support or suggestion thread would be best for that question/suggestion...

Thanks to your detailed description I can reproduce the problem.

This problem is supposed to be fixed in XnView MP 1.6.0. Please check and confirm the bug fix here.

Fixed.

However, while testing I noticed that the meaning of the icon between the X and Y values is not very clear:


Due I think to both the small size of the window and to the symbol used, the meaning of which is not immediately clear.


Edit: On further examination, the symbol between the DPI windows can actually display three states:


Is there possibly a better way of indicating whether or not changing one value also changes the other?

Note: Also an issue where sometimes changing between states has been opening a folder window.

Previous post updated.

Suggestions for a more intuitive symbol indicating whether the two DPI values change together:

o An equal sign '=' in a box, with a background colour (not too dark) when enabled;

o A box with an outline that changes from light to bold when the option is enabled;

o An outline that becomes coloured to indicate enabled.

o Or maybe an 'Equal' checkbox would be clearer?

and like that

Symbol
it's 2 state, pretty much standard symbol (ref link symbol U+1F517) to represent linked values, sometimes lock can be used

• photoshop

  

  ps_resize.png (8.99 KiB) Viewed 15885 times

• GIMP
  

• mspaint

  

  mspaint_resize.png (7.95 KiB) Viewed 15552 times

Visualization
it definitely can be better

xnview wrote: Thu Oct 19, 2023 8:54 am and like that Clipboard-2.jpgClipboard-1.jpg

yep, that's better

• on - chain icon with bg

• off - chain icon w/o bg OR broken chain icon

Dialog
speaking about dialog itself, maybe something like this:

Example

• PS, GIMP - see above

• FastStone

  

  faststone_set_dpi.png (4.04 KiB) Viewed 15512 times