I want to publish an app to Apple's app store. For this purpose I have to upload some screenshots.
I created three screenshots with the resolutions 1242 x 2208 (iphone) and 2048 x 2732 (ipad). So I have now 6 pictures in png format.
But if I upload one these files I get the error message that the screenshots have the wrong format. What do I wrong?
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altralaser
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did you capture these images with the simulator or some kind of screen capture on your puter ? iOS simulator will dish-out the appropriate sizes. Goto Simulator->File->Save Screen Shot – YvesLeBorg Mar 07 '18 at 12:57
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No, I used the physical devices (iPhone 8 Plus) and iPad Pro to capture the screnshots. – altralaser Mar 07 '18 at 15:20
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The use of the term "format" instead of "size" suggests that [this answer](https://stackoverflow.com/a/25878917/2564301) may apply. – Jongware Mar 07 '18 at 19:04
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I had a similar error to you. I had tried loading several images at once, past the 10 image limit. The images were correct (they were made in the simulator, and later loaded individually without a problem). – benc Nov 27 '18 at 05:09
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I screenshot the image via the iOS simulator and not able to upload. Tried to open the file in Adobe Photoshop and it says "Not a PNG file". But the file was saved as .png by iOS simulator.
What I did was to change the extension to .jpg without doing anything, and now able to upload to App Store Connect screenshot.

TPG
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