在iTunes Connect中如何获取尺寸合规的应用截图？

Hey there, let's get this screenshot problem sorted out—this is super common when uploading to App Store Connect, so you're not alone!

First, let's clear up the core issue: that 750x1334 size is actually correct for 4.7-inch iPhones (like iPhone SE 2nd/3rd gen, iPhone 8). The error almost certainly means you're uploading this screenshot to a slot meant for a different device (like a 6.1-inch iPhone 14/13/12, which requires 1170x2532).

Here are the most reliable ways to get properly sized screenshots:

1. Screenshot from the Correct Simulator Device #

• Open your Xcode Simulator, then go to Hardware > Device and select the exact device model you're targeting for that screenshot slot (e.g., pick "iPhone 14" if you're filling the 6.1-inch slot).
• Run your app in that simulator, then press Cmd + S to capture the screenshot. This saves an image with the exact resolution App Store Connect expects for that device.
• Pro tip: If your app supports landscape mode, press Cmd + Left/Right Arrow to rotate the simulator first before taking the screenshot.

2. Let Xcode Generate All Required Screenshots Automatically #

This is my go-to method—it eliminates all guesswork:

• Open Xcode and navigate to Window > Organizer.
• Select your app's latest Archive, then click Distribute App.
• Choose App Store Connect as the distribution method, then follow the wizard until you reach the "Screenshots" step.
• Xcode will automatically generate all the required screenshot sizes for every supported device. You can just use these directly for upload—no manual resizing needed.

3. Manual Resizing (Emergency Only) #

If you already have screenshots and need to tweak them quickly:

• Use Mac's Preview app or an image editor like Photoshop.
• Make sure you maintain the original aspect ratio (e.g., 9:19.5 for iPhone portrait) to avoid stretching the app interface.
• Resize to the exact resolution required for your target device (check App Store Connect's slot labels to confirm which size you need).

Quick Note on Common Mistakes #

• Double-check that you're uploading each screenshot to the correct device slot (e.g., don't put a 4.7-inch screenshot in a 6.1-inch slot).
• Avoid including simulator window borders—Cmd + S in simulator already captures just the app interface, so that's usually not an issue.

内容的提问来源于stack exchange，提问作者John D.