Bug 89598 - Allow to adjust the DPI (for the document canvas) and provide paper to your monitor calibration
Summary: Allow to adjust the DPI (for the document canvas) and provide paper to your m...
Status: RESOLVED NOTOURBUG
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
Inherited From OOo
Hardware: Other All
: lowest enhancement
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-02-23 20:27 UTC by jlbraga
Modified: 2017-08-14 12:03 UTC (History)
4 users (show)

See Also:
Crash report or crash signature:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description jlbraga 2015-02-23 20:27:25 UTC 
The 100% zoom SHOULD mean it shows the page just as it would be when printed (1:1 scale), however it DOESN'T. When printed, everything gets bigger. I compared the real page with the virtual one on the screen and found that the 1:1 scale is only reached when the zoom is about 105%. If precision is expected, the zoom function must be repaired, because it's illusory...I don't don't know if it's this way for all the programs in the whole LibreOffice suite, or for all the page formats, but at least for Writer in the A4 page format, this surely happens.

Thanks.
Comment 1 Julien Nabet 2015-02-24 16:45:19 UTC Comment hidden (obsolete)
Comment 2 jlbraga 2015-02-24 17:36:15 UTC 
(In reply to Julien Nabet from comment #1)
> On which LO version are you? Last stable one is 4.3.6 and 4.4.0 has been
> released.


I have the latest verion, 4.4. It's not a resolution bug, it's the measures, the scales, that must be corrected in the program itself, I guess...
Comment 3 Julien Nabet 2015-02-24 17:59:29 UTC 
Thank you for your feedback.
Comment 4 Robinson Tryon (qubit) 2015-02-25 23:09:50 UTC 
(In reply to jlbraga from comment #0)
> The 100% zoom SHOULD mean it shows the page just as it would be when printed
> (1:1 scale), however it DOESN'T.

That seems somewhat plausible, although I'll have to defer to the ux folks here. (I'd assume that monitors know how big they are, so this kind of computation is eminently possible)

Component -> ux-advise
Status -> NEW
Comment 5 Tomaz Vajngerl 2015-02-26 01:35:24 UTC 
This assumes that OS reports the correct monitor DPI to LibreOffice, which is mostly not the case an the usual default reported is 96 DPI (in Windows 7 - 96 is default, and you can choose additionally 120, 144, 192 DPI). If this information is not correct, we can't scale the document to the real world units correctly.

Still, what we could do here is to allow to adjust the DPI (for the document canvas) and provide some sort of calibration wizard (something like "hold an A4 paper to the monitor and adjust the width of this line to match the width of A4 paper"). 

But I wonder how much people do really care about this?
Comment 6 Robinson Tryon (qubit) 2016-08-25 04:44:57 UTC Comment hidden (obsolete)
Comment 7 Heiko Tietze 2017-08-14 12:03:30 UTC 
Following Tomaz' comment 5 it's NAB. The dpi adjustment wizard sounds overengineered to me.