Hi!
Here we have TW-KDE latest updates installed. For YEARS I use cups-pdf once monthly to print some documents from a single application to pdf files. Worked fine. No problem with the application I print from, as it prints pdfs just fine on Debian stretch (tested this morning).
But If I try to print from TW, I only end up with totally empty, blank white pages.
Nothing (new) in the cups logs:
error log
E [01/Jul/2021:08:31:37 +0200] Missing value on line 11 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 24 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 37 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 50 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 63 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 76 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 89 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 102 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 115 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 128 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 141 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 154 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 167 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 180 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 193 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 206 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 219 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 232 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 245 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 258 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 271 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 284 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 297 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 310 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 323 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 336 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 349 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 362 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 375 of /var/cache/cups/job.cache.
E [01/Jul/2021:08:31:37 +0200] Missing value on line 388 of /var/cache/cups/job.cache.
W [01/Jul/2021:08:31:37 +0200] CreateProfile failed: org.freedesktop.DBus.Error.ServiceUnknown:The name org.freedesktop.ColorManager was not provided by any .service files
W [01/Jul/2021:08:31:37 +0200] CreateProfile failed: org.freedesktop.DBus.Error.ServiceUnknown:The name org.freedesktop.ColorManager was not provided by any .service files
W [01/Jul/2021:08:31:37 +0200] CreateDevice failed: org.freedesktop.DBus.Error.ServiceUnknown:The name org.freedesktop.ColorManager was not provided by any .service files
Same errors I see for the last months were it worked just fine, last printing that worked was on 01-JUN-2021.
access log
localhost - - [01/Jul/2021:00:37:09 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:01:35:29 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:02:33:49 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:03:32:09 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:04:30:29 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:05:28:49 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:06:27:09 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:07:25:29 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:08:12:18 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 167 Create-Job successful-ok
localhost - - [01/Jul/2021:08:12:18 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 97995 Send-Document successful-ok
localhost - - [01/Jul/2021:08:13:13 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 167 Create-Job successful-ok
localhost - - [01/Jul/2021:08:13:13 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 127580 Send-Document successful-ok
localhost - - [01/Jul/2021:08:14:40 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 167 Create-Job successful-ok
localhost - - [01/Jul/2021:08:14:40 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 127580 Send-Document successful-ok
localhost - - [01/Jul/2021:08:23:49 +0200] "POST / HTTP/1.1" 200 184 Renew-Subscription successful-ok
localhost - - [01/Jul/2021:08:33:05 +0200] "POST / HTTP/1.1" 200 563 Create-Printer-Subscriptions successful-ok
localhost - - [01/Jul/2021:08:45:27 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 167 Create-Job successful-ok
localhost - - [01/Jul/2021:08:45:27 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 127580 Send-Document successful-ok
localhost - - [01/Jul/2021:08:45:34 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 167 Create-Job successful-ok
localhost - - [01/Jul/2021:08:45:34 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 127580 Send-Document successful-ok
localhost - - [01/Jul/2021:08:45:50 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 167 Create-Job successful-ok
localhost - - [01/Jul/2021:08:45:50 +0200] "POST /printers/CUPS-PDF HTTP/1.1" 200 127580 Send-Document successful-ok
and finally:
cups log : see here
https://paste.opensuse.org/e228da81
Anything known about cups-pdf printing currently not working in TW? 
