SUMMARY I'm reading a scientific paper and came across a strange gap. Using other pdf readers like the ones provided by firefox and chromium browsers, the symbol was rendered correctly. The symbol in question being ∈. For some reason, it doens't render, leaving a blank void. The text can be copied, however, which results in this: `he ∈` and sometimes this `den ∈`, it appears to be random. It's possible this issue may need to be escalated to whoever maintains the poppler backend, if that's where the issue lies. The file in question is freely available here: https://www.dbs.ifi.lmu.de/Publikationen/Papers/KDD-96.final.frame.pdf The problem appears a lot on page 3. STEPS TO REPRODUCE 1. Open the example pdf 2. Scroll to page 3 OBSERVED RESULT There is a blank void where the character should be. EXPECTED RESULT The character should be rendered correctly. SOFTWARE/OS VERSIONS Operating System: Manjaro Linux KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.105.0 Qt Version: 5.15.9 Kernel Version: 6.2.12-1-MANJARO (64-bit) Graphics Platform: X11
Works fine here ("belongs" symbol displayed) with urw-fonts installed. It seems that the font substitution system cannot find the correct replacement for Symbol font (not-embedded) in this PDF.