Bug 475426

Summary: Stamps are rendered sideways
Product: [Applications] okular Reporter: Jason Playne <jason>
Component: PDF backendAssignee: Okular developers <okular-devel>
Status: ASSIGNED ---    
Severity: normal CC: kdedev
Priority: NOR    
Version First Reported In: 23.08.1   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: screen recording of a stamp being placed (mouse down) and then rotated after release

Description Jason Playne 2023-10-10 13:27:28 UTC 
Created attachment 162186 [details]
screen recording of a stamp being placed (mouse down) and then rotated after release

SUMMARY

When adding a stamp to my PDF, it appears sideways on the PDF after adding it.

Unfortunately this document has lots of PII as it is for building plans - I was wanting to use a stamp sign "sign" it.

PDFs generated by Firefox (printing a page) did not exhibit this behaviour.

One lead might be that the problem PDF has a page rotation of 270 degrees whereas the Firefox one does not.

PDF DETAILS

PdfInfo for the PDF (A3, Landscape) that exhibits the problem:

Producer:        iLovePDF
ModDate:         Tue Oct 10 13:34:36 2023 AWST
Custom Metadata: no
Metadata Stream: no
Tagged:          no
UserProperties:  no
Suspects:        no
Form:            none
JavaScript:      no
Pages:           3
Encrypted:       no
Page size:       842 x 1191 pts (A3)
Page rot:        270
File size:       1241154 bytes
Optimized:       no
PDF version:     1.7

---

PDF Info for a Firefox Print to PDF (A3, Landscape) that does not exhibit the problem

Creator:         Mozilla Firefox 118.0.1
Producer:        cairo 1.17.4 (https://cairographics.org)
CreationDate:    Tue Oct 10 21:09:20 2023 AWST
Custom Metadata: no
Metadata Stream: no
Tagged:          no
UserProperties:  no
Suspects:        no
Form:            none
JavaScript:      no
Pages:           2
Encrypted:       no
Page size:       1191 x 842 pts (A3)
Page rot:        0
File size:       55240 bytes
Optimized:       no
PDF version:     1.5

---

STEPS TO REPRODUCE
1. Find a PDF that exhibits the problem (hopefully one without lots of PII)
2. Select a Stamp
3. Left Mouse Down and observe the stamp in the correct orientation
4. Release left mouse button and see the stamp rotated

OBSERVED RESULT
While mouse button down, see stamp in correct orientation
on mouse button release see image rotated 90 degrees Counter Clockwise (or 270 degrees clockwise)

EXPECTED RESULT
Stamp is in correct orientation

SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.27
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Kernel Version: 6.5.6-060506-generic (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 7900X 12-Core Processor
Memory: 30.5 GiB of RAM
Graphics Processor: AMD Radeon RX 7900 XT
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B650 AORUS ELITE AX

ADDITIONAL INFORMATION
Comment 1 TraceyC 2024-05-31 15:42:35 UTC 
Confirmed this on my system. On the day I created the stamp, it worked properly. Today, with a different PDF, it is exhibiting the same behavior as in the bug report. 

As a workaround, I added the stamp in Okular, and then used Libre Office Draw to rotate the image

Operating System: Solus 4.5
KDE Plasma Version: 6.0.5
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.1
Kernel Version: 6.8.11-292.current (64-bit)
Graphics Platform: X11

Okular 24.02.2
Comment 2 TraceyC 2024-05-31 15:44:22 UTC 
pdfinfo for the PDF that exhibits the problem

CreationDate:    Wed May  8 10:03:13 2024 CDT
Custom Metadata: no
Metadata Stream: no
Tagged:          no
UserProperties:  no
Suspects:        no
Form:            none
JavaScript:      no
Pages:           4
Encrypted:       no
Page size:       841.68 x 595.2 pts (A4)
Page rot:        270
File size:       1759725 bytes
Optimized:       no
PDF version:     1.4
Comment 3 Bug Janitor Service 2024-08-16 15:04:34 UTC 
A possibly relevant merge request was started @ https://invent.kde.org/graphics/okular/-/merge_requests/1042