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Ingrid Ensing

No transparancy export to png on ipad

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I can not export an image with a transparant background to png. The background in the png is not transparant, but white. It occurs on the newest version of Photo and Designer on the iPad (both version 1.7.3 on iOs13). In previous versions of both the apps this was never an issue.

 

E5B39E74-D075-4789-9779-40B7E006C152.png

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I think I know what’s the problem. The iPad doesn’t recognize png’s anymore. When I open the png in the Affinity-app, the backround is transparant. In all the other apps, who used to recognize png’s with transparant backgrounds (such as Photo’s and Werble) the transparant background is gone and replaced by a white background.....

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Hi Ingrid,

I've just tried this myself and it is definitely exporting with a transparent background. I also opened it from Werble (after saving it into Photos) and that shows up with a black area where the transparency is and effects can be placed behind the PNG and showing in the transparent area. I can also open the same file in Affinity and that opens with transparency as well.

Are you ensuring your document contains transparent areas which appear as a grey/white checkerboard pattern and they're then exported using the 'PNG' (not the 'PNG-8') preset.

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That’s strange Jean, beacause I’ve tried it again. Also on another iPad, but still no transparant background :-(

I also tried a new file, but the problem occured there as wel. When I try it in Affinity Photo (iPad), also no transparant background in the png export.

The image is made with a transparant background (see screenshot) and exported to png (see screenshot).

I really don’t have a clue what goes wrong,......

46ED54CA-83E4-493E-8CD6-19EFEE7AA7BB.png

95FE8672-6B26-40BA-8FBE-088A53EA4C36.png

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Hi Ingrid,

I don't believe this is a fault with our export, and is more specifically an issue with Werble. I tried a large document (2732x2048px) and that was fine, I then tried a document the same size as your one and it wasn't.

I then found the following tweet from Werble explaining that transparency fails when using small images and they're investigating it, so I would get in contact with them - In the meantime you can export at a larger resolution and you should be ok!

 

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Hi Sean,

Thank you very much for all your research! I tried a bigger size and it worked as you said. If I notice anything strange with the transparancy-export again, I’ll let you know.

Still a very happy Affinity-user! ;-)

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