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Exporting InDesign file for Apple iOS Retina Displays?

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Sep 14, 2020

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What's the proper way to export an InDesign CC v15.1.2 file so that it accommodates iOS devices? Although I have my file size set to 250 x 300 pixels, when I export the file using 144 PPI (Retina Resolution) the file dimensions double to 500 x 600 pixels. What am I doing wrong?

 

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Exporting InDesign file for Apple iOS Retina Displays?

Contributor ,
Sep 14, 2020

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What's the proper way to export an InDesign CC v15.1.2 file so that it accommodates iOS devices? Although I have my file size set to 250 x 300 pixels, when I export the file using 144 PPI (Retina Resolution) the file dimensions double to 500 x 600 pixels. What am I doing wrong?

 

Thanks!

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Sep 14, 2020 0
Most Valuable Participant ,
Sep 14, 2020

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Export it to what?

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Contributor ,
Sep 14, 2020

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Sorry, export it to .jpg.

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Sep 14, 2020 0
Adobe Community Professional ,
Sep 14, 2020

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Although I have my file size set to 250 x 300 pixels, when I export the file using 144 PPI (Retina Resolution) the file dimensions double to 500 x 600 pixels

 

If you want the exported JPEG to have a matching 250px x 300px dimensions set the export Resolution to 72ppi.

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Contributor ,
Sep 14, 2020

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Yeah, but aren't Retina displays 144 PPI?

 

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Most Valuable Participant ,
Sep 14, 2020

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The ppi is irrelevant though. All ppi does is hint a size for printing. On all other cases it's nothing. Your design seems very small though, but it does depend what it is. 

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Adobe Community Professional ,
Sep 14, 2020

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The display resolution depends on the device and its physical dimensions. Here’s an iPhone resolution chart:

 

https://www.paintcodeapp.com/news/ultimate-guide-to-iphone-resolutions

 

Most HTML pages are responsive to the device, so in general you want a large enough pixel dimension so that when the image is fit into the available space it is sampled down.

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