accessibility issue in docx and powerpoint files

[itwars]

Explain the problem. When using Pandoc to generate docx or pptx file, I got 2 differentes issues regarding docx and pptx (non consistent) regarding accessibility "replacement text" for an image:

Markdown:

![A chart](img/my-chart.jpg "This is a chart showing blablabla")

On docx replacement text give me:

This is a chart showing blablabla

A chart

On pptx replacement text give me:

fig:This is a chart showing blablabla  img/my-chart.jpg

I would like:

This is a chart showing blablabla

Pandoc version?

pandoc 2.17.1.1
Compiled with pandoc-types 1.22.1, texmath 0.12.4, skylighting 0.12.2,
citeproc 0.6.0.1, ipynb 0.2
User data directory: /Users/user/.local/share/pandoc
Copyright (C) 2006-2022 John MacFarlane. Web:  https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.

On MacOS 11.6.4

[mb21]

You're saying the string "Optional title" is somehow inserted in the output document even though it wasn't in the input? Can you try with the latest pandoc version?

[itwars]

Sorry, I just update the issue (wrong copy/paste). But I steel have the issue with last version :

pandoc 2.18
Compiled with pandoc-types 1.22.2, texmath 0.12.5, skylighting 0.12.3,
citeproc 0.7, ipynb 0.2, hslua 2.2.0
Scripting engine: Lua 5.4