Browser not showing transparent png files correctly

[jpage4500]

This problem is supposed to be fixed in XnView MP 0.97.1. Please check and confirm the bug fix here.

Hi, I know this is an old thread and it's my fault for not checking back for updates (I'll figure out why I'm not getting email notifications next). Anyway, I keep checking every 6 months or so to see if this transparency issue is fixed and see that it's not in the latest version (1.7.2 - mac)

I'm not sure if at this point it's a known issue but if I can help explain it in any way I will. Using the ExifTool window I think I see what's different in images have this problem and the ones that don't. In my case the only difference is the Color Type field. If it's "Pallete" then the transparency isn't visible. If it's "RGB with Alpha" then the transparency is displayed correctly. Both images are 8-bit.

xnview-good-exif.png (42.08 KiB) Viewed 1795 times

xnview-bad-exif.png (38.62 KiB) Viewed 1795 times

In my case I don't know why the images have different Color Types but I'd guess this happened when I compressed some of them using a tool like tinypng.com.

I also attached an image of a Mac app called PicSee which displays the transparency just fine:

[xnview]

please send some samples?

[jpage4500]

please send some samples?

Sorry, I meant to attach a good and bad png image but forgot. I've got lots to choose from but I tried to pick 2 that are as similar as possible with only the "Color Type" as the difference

xnview-good-vs-bad.png (36.95 KiB) Viewed 1781 times

GOOD:

device_life360_home.png (17.51 KiB) Viewed 1781 times

BAD:

device_life360_away.png (1.69 KiB) Viewed 1781 times

[xnview]

BAD:
device_life360_away.png

this one in not 32bits

[jpage4500]

BAD:
device_life360_away.png

this one in not 32bits

I think they're both 8-bit images

[jpage4500]

Another image viewer I'm using that displays transparency just fine with the same set of images is https://github.com/easymodo/qimgv

[xnview]

Thanks to your detailed description I can reproduce the problem.

[xnview]

This problem is supposed to be fixed in XnView MP 1.8.0. Please check and confirm the bug fix here.

[jpage4500]

This problem is supposed to be fixed in XnView MP 1.8.0. Please check and confirm the bug fix here.

it works!!

I do see some of them have black backgrounds and others have gray backgrounds which is a little confusing but at the end of the day I can finally see the image so I'm not complaining!!

FWIW here's an image with a black background in full view -- so it is a transparent background (second attachment)

[user0]

fixed in 181