How to Resize an Image [from Any Device]

With today’s modern gadgets, taking photos has become so easy that having hundreds of images in storage is not a particularly strange or uncommon thing. Storage does become a problem though, as the better camera quality gets, the larger the photo’s file size.

Resizing is not just cropping an image, it can also mean the manipulation of pixels to reduce the file size. If you’re trying to send a lot of pictures to another person but the file size is too large, you’ll need to condense the photo to send it.

This is where resizing images come in handy. With the proper tools, you can adjust both the picture and file size of a particular image to suit your needs. In this article, we will show you how to resize an image for a variety of devices.

How to Resize an Image on an Android Device

Out of the box, an Android phone or tablet does not come with applications that can be used to resize an image. The Photos app that comes as a standard with Android can be used to view files, but there are no available options for you to edit anything. Fortunately, useful applications for android devices can be found at the Google Play Store.

The type of app may vary depending on both your device type and Android version, but most have very similar tools. The standard process of resizing an image is to either select one or multiple images from your album, then choose the resolution that you want it resized to. Here are a few choice tools that are highly rated on Google Play:

1. Photo Compress & Resize

An easy-to-use and intuitive Image size reducer, Photo Compress and Resize allows the user to both decrease the image size, or crop images and remove unwanted portions of the picture. It can perform batch image reductions and allows for multiple files to be selected and reduced all at once.

2. Photo & Picture Resizer

A convenient photo resizer made for Android devices, the Photo & Picture Resizer app gives the user the option to quickly change the size of single or multiple images with a few simple taps. Made to match the original picture aspect ratio by default, the Photo & Picture Resizer makes it easy to upload images to various social media sites. The app also allows for batch processing multiple images all in one go.

3. Q Reduce: Photo Reducer and Q Reduce Lite

The Q Reduce app is a no-nonsense, straightforward file size reducer that does one thing and does it well. The Lite version performs single image reductions while the full version allows for batch images along with several other image editing options, such as crop selection and photo archiving.

How to Resize an Image on a Windows PC

Probably one of the most versatile tools for image editing, a PC will usually come with programs that allow you to edit images. In addition, some of the best photo editing tools are available for PC. We’ll list a few programs along with some tips on how to reduce images:

1. Paint

All Windows versions below Windows 10 will come with MS Paint by default. Although quite basic as photo editing tools go, it can still resize pictures rather easily. To do so, follow these steps:

  1. Open the image by either right-clicking on it and selecting Open With, or clicking File, then Open on the Paint top menu.
  2. On the Home tab, under Image, click on Resize.
  3. Adjust the image size either by percentage or pixels as you see fit. Click on Maintain Aspect ratio to keep the image size constant when adjusting by percentage.
  4. Click on OK.

2. Paint 3D

Windows 10 comes with an updated version of the Paint app which has a lot more options than the original. The interface has been changed quite a bit though, so those familiar with the previous program may find themselves lost when trying to navigate the menus. To resize an image in Paint 3D, do the following:

  1. Open the image in Paint 3D.
  2. Click on the Canvas tool at the top menu.

  3. On the menu on the right, you can adjust and resize the image either by pixels or percentage. The lock aspect ratio maintains the proper image size balance, and Resize Image with Canvas increases or Decreases the Paint 3D canvas size in relation to your adjustments.
  4. Click on Menu then Save to keep any changes.

3. Adobe Photoshop

Considered one of the best image tools around, you can not really think of photo-editing without mentioning Adobe Photoshop. Although not free as the others mentioned, this program’s versatility is well worth the price. To resize an image in Photoshop, follow these steps:

  1. Click on ‘Image’ in the top menu.
  2. Choose Image Size.
  3. Adjust the dimensions as you see fit the click on OK.

Batch resizing can also be done, though it will require recording Actions, then proceeding to choose File, Automate, then Batch.

4. Irfanview

A free and very popular image viewer, Irfanview also has the ability to resize images, both individually, and by batches without having to record program actions first. It is a very handy tool to have, and as it costs nothing to install, there really is not a reason not to give this program a try. You can resize images in Irfanview like so:

  1. Open the image by right-clicking and choosing Open With, or finding it through the Irfanview menu by clicking File, then Open.
  2. Click on Image on the top menu then click on Resize/Resample.
  3. Adjust the image values as you see fit, then click on OK.

Batch conversion of images located in one folder can be done by opening Irfanview, clicking on File, then choosing Batch Conversion/Rename. All images located in the folder will then be resized automatically.

How to Resize an Image on an iPhone

Although the Photos app that comes with your iPhone can be used to crop images down to a certain size, it doesn’t have the feature to decrease its resolution nor file size. There are, however, apps available through the Apple App Store that do the job very well:

1. Image Size

Simple to use, and rather straightforward, Image Size is one of the most popular image editors in the App Store. This free tool is handy for those that would like a no-nonsense way to reduce picture file sizes.

2. ImageResize

A handy tool for quickly resizing then posting images from your iPhone, ImageResize is another popular editing tool in the Apple App Store. When resizing images, it displays the estimated resulting file size so you can easily adjust files for uploading to sites with specific file size requirements.

3. Batch Resize

A useful app that allows users to resize multiple images at once, Batch Resize is a great tool for those that like to take a lot of pictures and have albums with a lot of images.

How to Resize an Image on a Mac

The Mac is a powerful tool for people that want to edit images. Many graphic artists prefer to use a Mac when editing, though whether this is a professional or personal choice is up for debate. The available tools are still quite useful though. Here are some of the easiest to use:

1. Preview for Mac

The default photo and image viewer for the macOS, it comes with several editing options including resizing. To do so, follow these steps:

Open the file you want to resize on the Preview App.

Click on Tools, then choose Adjust Size.

Choose ‘Resample’ image.

To do batch image resizes, open multiple images in the same window, then follow the steps as given above.

2. Adobe Photoshop

This popular photo editing program is also available for use on Mac. The steps for image resizing are the same as those for the PC.

How to Resize an Image on a Chromebook

As the Chromebook is limited to only Google approved applications, the choices for photo editing on this platform are not as varied as the others. But it still comes with a default program that can accomplish this task. Alternatively, you can enable the Google Play Store on your Chromebook, then download image editors as if you were using the Android.

Image editor

This is the default image viewer for your Chromebook and is the program used when you open an image file. To edit pictures using this app, do the following:

  1. Open your image file then click on Edit in the menu.
  2. Choose and click Resize.
  3. Adjust the values as you see fit.

Additional FAQ

Here are the answers to a few of the most frequently asked questions on how to resize images.

1. What online tools can you recommend for resizing images?

The following tools offer simple drag and drop options when resizing picture files, and all of them are free and available without installing anything. For single images try using PicResize, or PhotoSize. For batch projects, BulkResize, and BIRME are rather useful. As they are online tools, it really does not matter which platform you use them on. As long as you have an online connection, you can use any of them.

2. What programs can you recommend for resizing batches of images?

The applications provided for each platform above have choices that offer batch image processing. They are some of the most popular for each of their specific platforms and offer users a great tool for resizing multiple images.

3. What effect does resizing an image have on the file size?

Resizing an image has a very considerable effect on a picture’s file size. As decreasing or increasing the size of an image will respectively decrease or increase the number of pixels that are rendered when you open the file. This means that the smaller the number of pixels, the less the size of your file, and vice versa. This is important to remember as many online sites have upload limitations, and won’t accept images beyond a certain file size.

An Integral Part of Picture Taking

Now that taking pictures is so simple, the need to manage the size of image files has attained more significance, especially for those that do it often. It would be extremely frustrating to take a picture of an important moment, only to find that you have run out of storage space. Resizing pictures has now arguably become an integral part of taking them.

Do you know of other ways to resize images on different devices? Share your thoughts in the comments section below.

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