Extra line breaks are missing when PDF is loaded

[artstalker]

Link to PDF file here:
document (19).pdf

It is reproducible in https://mozilla.github.io/pdf.js/web/viewer.html
Configuration:

• Web browser and its version: Firefox 121.0.1 (64-bit)
• Operating system and its version: Windows 11 Pro 10.0.22631
• PDF.js version: Latest (https://mozilla.github.io/pdf.js/web/viewer.html)
• Is a browser extension: No

Steps to reproduce the problem:

1. Load PDF file
   Actual result:
   There is no missing blank line in the field between Several and Other
   

Expected result:
If you open PDF in any other PDF viewer (Foxit desktop for example), you will see that empty line is there

It is always reproducible with any file and any field.
You can add extra line breaks right in pdf.js, save the file, and it will be gone on the file load.

[Snuffleupagus]

The problem is with the Appearance-data of the Annotation, since the empty showText-command (see the 0 -17.11 Td () Tj line below) is being ignored when extracting textContent.
While that behaviour seems reasonable by default, perhaps the keepWhiteSpace-mode can/should behave differently and thus invoke appendEOL if the text-movement was large enough to "look like" a new-line in e.g. this branch?

21 (dict) [id: 144, gen: 0]
    Type = /Annot
    Rect (array)
    Ff = 4198400
    V = "Several\n\nOther\nJobs"
    T = "otherJobExperience"
    BS (dict)
    P (dict) [id: 1, gen: 0]
    DA = "/Helvetica 12 Tf 0 g"
    F = 4
    MK (dict)
    Subtype = /Widget
    FT = /Tx
    AP (dict)
        N (stream) [id: 154, gen: 0]
            Subtype = /Form
            Resources (dict)
            BBox (array)
            Length = 180
            <view contents> 
            /Tx BMC q 1 w 0 G 0 0 151.015 87.53 re S BT /Helvetica 12 Tf 0 g 1 0 0 1 0 87.53 Tm 2 -13.67 Td (Several) Tj
            0 -17.11 Td () Tj
            0 -17.11 Td (Other) Tj
            0 -17.11 Td (Jobs) Tj ET Q EMC

    M = "D:20240110195645"

[artstalker]

Hi,

Do you have plans for when this fix will be delivered in the release?