Bug 447885

Summary: A signature that is valid in Adobe shows as not valid in okular
Product: [Applications] okular Reporter: danitxu <jdanitxu>
Component: PDF backendAssignee: Okular developers <okular-devel>
Status: RESOLVED UPSTREAM    
Severity: normal CC: aacid
Priority: NOR    
Version: 21.08.1   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: PDF file with supposed valid signature
PDF file with supposed valid signature

Description danitxu 2022-01-03 15:48:05 UTC
Created attachment 145081 [details]
PDF file with supposed valid signature

STEPS TO REPRODUCE
1. Open attachment in okular and see the signature as not valid
2. Open attachment in Adobe or Autofirma and it is valid

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:  Kubuntu 21.10
KDE Plasma Version: 5.22.5 
KDE Frameworks Version: 5.86
Qt Version: 5.15.2
Comment 1 danitxu 2022-01-03 15:50:45 UTC
Created attachment 145082 [details]
PDF file with supposed valid signature

The previous attachment wasn't the correct one
Comment 2 danitxu 2022-01-03 15:56:28 UTC
Comment on attachment 145081 [details]
PDF file with supposed valid signature

Ooops: this is on the correct file (this is the unsigned one), the signed file is in the other attachment
Comment 3 Albert Astals Cid 2022-01-03 18:49:24 UTC
Please file the bug against poppler https://gitlab.freedesktop.org/poppler/poppler/-/issues since Okular doesn't do anything regarding validation.