Bug 106513 - [Feature request] Optical margin alignment
Summary: [Feature request] Optical margin alignment
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
unspecified
Hardware: All All
: medium enhancement
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
: 135466 (view as bug list)
Depends on:
Blocks: Paragraph Authors
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Reported: 2017-03-12 16:56 UTC by Antoine Adet
Modified: 2025-09-03 16:13 UTC (History)
8 users (show)

See Also:
Crash report or crash signature:

Attachments
Example of protrusion at work on XeLaTeX with EBGaramond font (41.34 KB, image/png)
2025-09-03 16:13 UTC, RGB 		Details
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Description Antoine Adet 2017-03-12 16:56:02 UTC 
Description:
It would be great if LibreOffice could support optical margin alignment.
Cf. (https://en.wikipedia.org/wiki/Optical_margin_alignment)

Steps to Reproduce:
Always

Actual Results:  
Not available

Expected Results:
Make punctuation into the margins.


Reproducible: Always

User Profile Reset: 

Additional Info:


User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.98 Safari/537.36
Comment 1 Regina Henschel 2017-03-12 20:10:07 UTC 
In German "Optischer Randausgleich",  sometimes to be find by term "character protrusion". The feature is available in InDesign, Scribus and PdfTeX.

It is a valid request.
Comment 2 Luke 2017-04-17 11:41:55 UTC 
This feature would be especially nice because it is so far only available to a limited as a Graphite smartfont feature for Linux Libertine - but not for any other fonts. In Scribus, InDesign etc. optical margin alignment appears to be implemented in the software. So it is unlikely that other fonts will ever have such a feature implemented only for LibreOffice.

"hanging punctuation" is another term that describes more or less the same feature. Searching for this in LiberOffice Help indicates that the feature seems to be already available for Asian typography (but apparently limited to periods and commas). This makes me hope that the feature could relatively easily be implemented for Latin script and punctuation signs like hyphens. Bud I must admit I have now knowledge in software development whatsoever.
Comment 3 Ming Hua 2020-08-05 16:27:41 UTC 
*** Bug 135466 has been marked as a duplicate of this bug. ***
Comment 4 Thomas Lendo 2020-10-06 08:03:44 UTC 
Should this new setting be part of 'Paragraph > Alignment' dialog in the area of the 'Justified' options?
Comment 5 RGB 2025-09-03 16:13:26 UTC 
Created attachment 202678 [details]
Example of protrusion at work on XeLaTeX with EBGaramond font

This would be an excellent addition to the great enhancements provided by Bug 159923, Bug 167648, and Bug 168251. Protrusion makes justified text look better on any situation, not only narrow columns! 

In the attached example, you can see a screenshot of a zoomed-in fragment of a document generated with XeLaTeX, microtype package with protrusion enabled, and EBGaramond font. The gray line is there only as  a reference to see how the punctuation marks "cross the margin" to fill it.