Created attachment 167608 [details] List of font SUMMARY Filling the pdf that you can get from the Polish government: https://bip.malopolska.pl/e,pobierz,get.html?id=3306136&file=undefined you can see data when you fill it, but when you disable 'show form' the form is blank STEPS TO REPRODUCE 1. Download pdf https://bip.malopolska.pl/e,pobierz,get.html?id=3306136&file=undefined 2. open with okular 3. click on `show form` 3. Fill surname 4. click again on `show form` OBSERVED RESULT The text of the form will be invisible EXPECTED RESULT The text should be rendered ADDITIONAL INFORMATION I tried before with okular 22.12.3 from debian stable, and after I install also okular (24.02.0) from flatpack and get the same result