Reduce file size of an image

Although storage space gets cheaper and cheaper, it seems we always need and want more and more. It’s particularly true if you have a 16GB iPhone. If that’s the case, storage is even more precious to you and you should try to make every MB count.

Along with music and videos, photos are probably one of the most notorious storage eaters on your iPhone. I know mine is filled with over 20 GB of pictures alone. If you’re in the same situation and you want to save some storage space on your iPhone, one of your options is to decrease the file size of your iPhone pictures.

As always, there is an app for that. As a matter of fact, there are probably dozens of apps for that, but the one I use is called Compress Images, an app which only purpose is to lower file size of PNG, JPEG, and HEIF images while maintaining the original dimension, unless you choose otherwise.

In this post, I will show you how to reduce pictures file size on iPhone using Compress Images in order to regain some storage space on your device…

How to reduce a photo file size on your iPhone

Before we get started, it must be noted that while Compress Images will make photos file size smaller, and can reduce the actual dimensions of the pictures, this is not the app’s primary purpose. If that is what you are trying to do, check out our guide on how to resize an image on your iPhone.

Step 1: Download Compress Images from the App Store.

Step 2: Launch the application and tap the ” + ” icon in the middle of the screen. It will show all the photo albums available on your device. Open an album and select one or more photos that you want to compress, then tap Select.

Select photos to reduce

Step 3: This is now where you can tweak the level of compression. You have two compression levels available to you: image quality and image dimensions. The more you want to reduce a photo file size, the lower the quality level should be. Likewise, you can choose to reduce the size of images to make their file size smaller.

For the purposes of this post, I set image quality at 60% and I also chose to reduce file size to 85% of its actual dimension.

Reduce image size and quality

Step 4: Tap on the Compress images button at the bottom. The app will then work its magic to downsize the file size of your photos. The more pictures you have to process, the more time it will take. In my experience, the app was very fast at compressing each image, but of course, your mileage may vary.

Compressing images

As each image file is processed, the app indicates how much smaller it is once compressed.

Step 5: Once the app has finished processing the pictures, they will be automatically saved to your Camera Roll, so you can find them easily.

Photos compressed successfully

Step 6: You have now the option to delete original photos to save space on your device. Depending on your needs, you may select this option, or tap Keep original images.

Shrinking the file size of your photos can save you tons of space of your device. Of course, to save that space, you will have to delete the original photos. And also remember that the more you lower a picture file size, the worse the quality of this image will be.

Here is the size of these two photos I used, before and after shrinking them:

  • Photo 1 was 2.3 MB, now 155 KB
  • Photo 2 was 2.2 MB, now 293 KB
  • Photo 3 was 1.7 MB, now 207 KB

In my experience with Compress Images, I haven’t really noticed an obvious loss of quality, but if you have a good eye for these kind of things, it might make a difference to you, especially as you lower the compression quality.

While we’re on the topic, here are a few articles that might be of interest to you:

Please make sure to share your comments below, especially if you have a trick of your own to compress photo file size on iPhone.