Hi @sndrmllr ,
well, yes, it's a known bug with InDesign.
What's your exact version of InDesign and your operating system?
The issue was certainly discussed here in the forum some years ago.
At first glance it seems to be the bug described in the thread I linked to below; maybe there is the same root cause:
Text in tables not aligned after exporting to PDF Laubender, Apr 28, 2025
https://community.adobe.com/t5/indesign-discussions/text-in-tables-not-aligned-after-exporting-to-pdf/m-p/15293336#M622507
But your document is showing no InDesign table but more a "tabular" object, a text frame with 13 columns. The more columns, the more paragraphs are running through the text frame's columns, I think, the more the bug is visible.
Also for this kind of object the bug in PDF Export is known. I have to go back some years perhaps to find the relevant thread here in the InDesign forum. Ah, finally found the one from November 2021:
Problems with PDF Export in Indesign maehrchen, Nov 05, 2021
https://community.adobe.com/t5/indesign-discussions/problems-with-pdf-export-in-indesign/m-p/12501088#M451973
See my test files still available on Dropbox:
https://community.adobe.com/t5/indesign-discussions/problems-with-pdf-export-in-indesign/m-p/12501527#M452019
Discussed in English:
https://community.adobe.com/t5/indesign-discussions/problems-with-pdf-export-in-indesign/m-p/12501851#M452043
And indeed, the solution (the workaround) was to export to PDF with the option "Tagged Text" enabled.
Regards, Uwe Laubender ( Adobe Community Expert )
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