SUMMARY The list of options for the fields that have it cannot be viewed by clicking on the little arrow on the right. STEPS TO REPRODUCE 1. Open a PDF form with drop-down fields - e.g. "Registration Form" from https://www.muenchen.de/rathaus/home_en/Department-of-Public-Order/Registration-Deregistration.html Not attaching the PDF to this bug report because the PDF contains something that looks like a copyright notice, sorry. 2. Scroll down to page 2 and click on the arrow for the field under "Civil status". OBSERVED RESULT Nothing happens. EXPECTED RESULT The list of suggested value options should appear, e.g. LD, VH, ... for this particular field. The same procedure works correctly in the Google Chrome's integrated PDF viewer. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.17.5 (available in About System) KDE Plasma Version: 5.17.5 KDE Frameworks Version: 5.68.0 Qt Version: 5.13.2 ADDITIONAL INFORMATION
It's a bug of either the file, Adobe Reader/Chrome, or the PDF spec https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/613