Issue 124880

Summary: Draw fails to recognize alpha layer (transparency) of .tiff
Product: Draw Reporter: hanson.alex
Component: formattingAssignee: AOO issues mailing list <issues>
Status: CONFIRMED --- QA Contact:
Severity: Normal    
Priority: P3 CC: Armin.Le.Grand, hdu
Version: 3.3.0 or older (OOo)   
Target Milestone: ---   
Hardware: All   
OS: All   
Issue Type: DEFECT Latest Confirmation in: 4.1.0
Developer Difficulty: ---

Description hanson.alex 2014-05-13 01:45:55 UTC
Draw does not seem to be able to import the alpha layer of a .tiff. The background appears as an off-grey color. Unable to change the fill through picture fill properties.

Picture inserted using Inset -> Picture -> From File...
Comment 1 hanson.alex 2014-05-13 18:15:27 UTC
To expand on this... I'm using 4.0.1 on Windows. Today I tried libre office on a different computer and it worked just fine.
Comment 2 mroe 2014-05-14 06:22:08 UTC
Please attach a sample document with a .tiff that easy shows the described behaviour.
Comment 3 hanson.alex 2014-05-14 19:12:23 UTC
see document at:
https://www.dropbox.com/s/qyec8nbuosts8lb/png-error.odg
Comment 4 mroe 2014-05-14 20:07:01 UTC
Can confirm that the transparency of a .tiff is not respected. Same bitmap as .png makes no problem.
Comment 5 Armin Le Grand 2014-06-20 11:56:27 UTC
Adding Herbert to CC. Herbert, do you know more about the tiff filter?
Comment 6 Armin Le Grand 2014-06-24 13:18:24 UTC
Excerpt from Tiff Wikipedia page : 'Very few applications correctly process TIFF files with alpha channels'. Interesting...
Comment 7 Armin Le Grand 2014-06-24 14:45:31 UTC
@hanson.alex: The link in comment 3 is dead, could you please add the TIFF in question directly as attachment please?