Walkthrough on How to Resize an Image on iPhone with Detailed Steps

June 17, 2022Ashley Mae

If you are looking for an on-the-go camera but on mobile devices, you can't go wrong choosing an iPhone. The latest iOS version camera provides an extra crisp image with a low shutter speed every time you capture an image. Sometimes we wish to use the image for other purposes like printing it out as a decoration. Your image can be wallpaper ready if you change its dimension to suit your preferences. However, not all photo resizers do provide a precise result at the end of the output. Want to know how to resize an image on iPhone precisely? In that case, you must keep the ball rolling as we introduce to you the best photo resizers you can use on your iPhone with tutorials on each app.

Resize an Image on iPhone

Part 1. How to Resize an Image on iPhone Using the Native Image Editor

Your iPhone is a powerful mobile device that captures any visible to your naked eye with high quality. Also, it provides an image editor that it can use to edit the image you have on your device. Resizing the image with Photos is a piece of cake task on this native editor. However, there are no options available to resize the image precisely. So, if you want to resize a photo for iPhone wallpaper, you can follow the steps below to teach you how to do it effectively.

Step 1:
On your iPhone device, open the Photo app.
Open Photos
Step 2:
Select the image you want to resize on the options that will show on your screen; tap it once.
Step 3:
Tap the Edit to start altering the dimension of the image you have.
Click Edit
Step 4:
Tap the Crop icon to start changing the image's aspect ratio and change the frame according to your preferences.
Crop Icon

Additional: If you want to resize the image automatically, the Auto option presented above will automatically resize the image. If that is not the dimension you want to achieve, you can tap it again to revert the changes.

Step 5:
To apply the changes you've edited, click Done, and it will automatically resize the original image.
Done And Save

Part 2. 3 of the Best Image Resizer Apps Use to Resize Photos for iPhone

1. Aiseesoft Image Upscaler Online

First on our list is the best app you can use to resize a photo on your iPhone without downloading the app on AppStore, but you can access it on your search engine: the Aiseesoft Image Upscaler Online. This tool can help you change its dimension automatically with the support of its AI technology. If you use this software to upscale images, you have choices to resize the image, even up to 800%. Also, you wouldn't need to download the installer because it is accessible on your web browser. Do you want to know how effective this tool is? There is a single way to find out, and that is by testing it out; follow the steps below to know how to use it.

Step 1:
You can click this link to open the primary domain of the upscale image tool.
Step 2:
Tap the Upload Image and allow the tool to have access on your device so that you can upload the image you want to upscale. Choose the image you want and click Open.
Upload Image ti Upscale
Step 3:
Wait for the file to load up; on the Magnification options, you can upscale the image automatically; you can try them all to see which fits the best to use as wallpaper.
Change Magnification
Step 4:
To export the upscale version of the image, click Save, and export will begin.
Click Save To Export

2. Image Size

Image Size is one of the most commonly known images resizer apps you can use to change the dimension of the image to make it fit according to your needs without limitations. You can download this app for free on the Appstore once you visit, and it is in the rank one image resizer you can download. Unlike Photos, you can type the height and width of the image you want to achieve, and it will precisely change the size of the image you want. Though the tool is free to download and use, pesky ads will show on your screen once you use it. If you don't mind the ads, you can follow how to resize a photo on your iPhone using this application.

Step 1:
Download the app on the Appstore, then open it.
Step 2:
Now that it is launched click the blank page to upload the image here.
Image Resize
Step 3:
hange the number for width and height according to your preferences.
Step 4:
Tap the download button to export the image you resize with this app.

3. Resize It - Image Resize

Resize It - Image Resize is the second most picked image resizer on iPhone according to the arrangement on App Store. This app can help you edit the aspect ratio like the first downloadable app we mention in this article. But with this, you can choose different pre-built dimensions for 240, 320, 480, 640, 800, and more that already have a size on each. With this app, you can also crop your image if you want to. However, the interface of this tool is bland, and the color it supports is not unattractive. It also has ads once you launch it. But if you want to use this app and looking for a tutorial on how to resize an image on iPhone, you can read the information listed below.

Step 1:
Open your AppStore, search its name on the search box, and click Get to download the app on your iPhone.
Step 2:
To upload the photo you want to resize, tap the image icon on the lower left part of your screen.
Step 3:
Click the Resize icon, and add the exact number for the image size here.
Upload And Resize

Optional : If you want to achieve an exact resize on the image, you can choose the other options available below, choose among them, and slide them if you want to see the other option.

Step 4:
Click Done, then go to the download icon to save a copy of the resized image on your device.

Part 3: FAQs on How to Resize Images on iPhone

Is it safe to use the Aiseesoft Image Upscaler Online on iPhone?

It is safe to use; you can try to search its domain and SSL certificate to confirm if the online tool is legit or not. Don't be afraid to access this software because it doesn't have malware or viruses that could infect your iPhone.

Can I revert the image I resize on Photos?

Once you resize the image on Photos, you can still revert it to the image's original state. Open the Photos, click the image you want to revert, click Edit, then click the Revert.

Does cropping is an effective image resizer?

If you want to cut the image into smaller cropping, the image can help you. But if you want to change the aspect ratio of an image, cropping will not help you.


How to resize images on iPhone is solved with the native image editor you can access on your iPhone, which is the Photos and the three alternatives you can use. Even though we list the apps and tools you can use, it is still in your hand which tools you would use. Did this blog help you? We hope to cover all of the information you'll need to know in this article. If we miss some information, you can leave a comment below, and let's talk about it.

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