Bug 470077

Summary:	Rotating an image by 180° changes size of the image
Product:	[Applications] gwenview	Reporter:	agilob <kdebug>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	idontfeelcomfygivingyoumyemail
Priority:	NOR
Version First Reported In:	23.04.1
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description agilob 2023-05-21 07:08:34 UTC

SUMMARY
***
I did a lot of scans in 300 DPI, produced images are about 27Mib, every now and when I scanned a page upside down, so I need to rotate them. Rotating changes the image size.
***


STEPS TO REPRODUCE
1. Open big image
2. Rotate left twice to achieve 180
3. Save

OBSERVED RESULT
Image is now 7.9Mib, down from 27Mib, resolution is the same

EXPECTED RESULT
Image should be the same size.

Where can I share an example file of this size?

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.106.0
Qt Version: 5.15.9
Kernel Version: 6.1.28-1-lts (64-bit)
Graphics Platform: Wayland
System Version: 1.0

Comment 1 A Linux User 2025-08-21 00:45:05 UTC

Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please check if this is still an issue with Gwenview 25.08.0?

Comment 2 Bug Janitor Service 2025-09-05 03:48:14 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 3 Bug Janitor Service 2025-09-20 03:48:08 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.