Bug 324597

Summary:	Rotating and saving a JPEG image changes the image itself, not the EXIF orientation tag
Product:	[Applications] gwenview	Reporter:	Tanja Schulte <nightowl>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	RESOLVED FIXED
Severity:	major	CC:	alan.pater, myriam, nate
Priority:	VHI	Keywords:	usability
Version:	4.11.1
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:

Description Tanja Schulte 2013-09-06 19:08:25 UTC

I'm shocked: I've just rotated some jpg images via the buttons in the toolbar, was asked to save the rotated images when I wanted to quit, said yes - and now the files are not even half the file size they were before (3,3 MB before, 732,2 KB to 1,3 MB after saving). That really is a "no go". Saving after rotation has to be lossless - or at least I want to be asked at which compression I want to save.

Reproducible: Always

Comment 1 Christoph Feck 2013-09-11 23:25:45 UTC

I would say this is a bug, but not really a duplicate of bug 294594. Rotating the image should only update EXIF info, not write a new image in the first place.

Comment 2 Nate Graham 2017-09-09 13:42:57 UTC

Also not-quite-a-duplicate of https://bugs.kde.org/show_bug.cgi?id=294594. They're not the same, but unnecessarily re-saving the image triggers 294594.

Using this as the base for other bugs reporting "rotating image changed/deleted metadata and reduced the file size instead of just changing the EXIF rotation tag".

Comment 3 Nate Graham 2017-09-09 13:43:59 UTC

*** Bug 328282 has been marked as a duplicate of this bug. ***

Comment 4 Nate Graham 2019-08-12 19:46:14 UTC

This appears to be fixed as of Gwenview 19.04.0. Please verify.

Comment 5 Nate Graham 2019-08-24 17:56:33 UTC

Yup, can confirm fixed.