text selection is incorrect when close to some math symbols

[Rehan-MALAK]

Describe the bug

text selection is incorrect when close to some math symbols

Steps to Reproduce the behaviour

1. Download https://webusers.imj-prg.fr/~pierre.schapira/LectNotes/CatShv.pdf
2. Go to page 31
3. Impossible to select the word "coproduct" in the Definition 2.1.1 ii) when the mouse is over the word 'coproduct'
   (it is possible by selecting on the next line, on the 'or' word)

What is the expected behaviour?

1. open https://webusers.imj-prg.fr/~pierre.schapira/LectNotes/CatShv.pdf- directly in Firefox or Okular
2. Go to page 31
3. select the word "coproduct" in the Definition 2.1.1 ii)

Firefox :

Okular :

Note that Evince is also not nice :

Desktop

• OS: Debian GNU/Linux trixie/sid
• Emacs Version: GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.38, cairo version 1.16.0) of 2023-09-05

Your pdf-tools install

• pdf-tools 20230611.239

Additional context

Screenshots taken with

emacs -Q
and then in Eval minibuffer

(require 'package)
(package-initialize)
(use-package pdf-tools)
(pdf-loader-install)

[aikrahguzar]

This looks like an issue with poppler since evince is also affected.

[Rehan-MALAK]

Thanks @aikrahguzar

I adapted the issue description and forwarded it to
https://gitlab.freedesktop.org/poppler/poppler/-/issues/1435

[Rehan-MALAK]

More precisely, it could be an issue with poppler-glib since okular is not affected and the poppler-glib-demo is.