Back to all posts

How to Reduce Photo Size Without Quality Loss

May 11

13 min. to read

Today we will talk about how to make a picture smaller file size. But why do you need it? It's important to maintain the rational size of all your image files if you want to have free space.

How to Reduce Photo Size Without Quality Loss Image1

Sometimes, reducing the size of an image is necessary. High-resolution original images can take up a lot of space on your computer or mobile device, potentially slowing performance and causing storage issues. While larger photos often mean 'high quality,' it's important to note that a picture's size does relate to its quality to some extent. However, you can often reduce the file size without significantly compromising the photo's visual quality. 

So, how can you make an image smaller in file size, and what is the purpose? And how do you use a photo editor for this?

Understanding Image Compression and Its Benefits

How to Reduce Photo Size Without Quality Loss Image2

Image compression is the process of reducing the file size of an image, which can be achieved through various techniques. It plays a crucial role in digital image management and has both advantages and disadvantages.

Reducing a file's size is often necessary for various reasons. Here are some of them:

  • To free up disk space: You want valuable storage space, but files take almost everything. You can easily reduce the size of an image and free up some space. At this point, it is also worth mentioning that you should definitely choose the best photo organization software.

  • For easier file sharing: You want to upload a photo as an attachment (email or otherwise), but the file size is too big to attach. Reduced file size would allow you to upload the file easily and quickly.

  • For website optimization: You want to upload the image to your website, but the big size is not only taking up space but also causing the website to load slowly.

Next, we will look at several ways on how to resize an image.

Step-by-Step Guide: How to Reduce Image File Size

How to Reduce Photo Size Without Quality Loss Image3

All these situations described above require the size to be reduced. And how can you do that? Let’s find out together. This guide provides useful tips on how to reduce the file size of a photo so you can store and share your images easily and efficiently.

By the way, if you want to simplify the post-processing of your best photographs, be sure to check out Luminar Neo's AI photo editing. (Spoiler alert!)

Changing Picture Dimensions for Smaller File Size

The best way to reduce the size of an image is to lower its dimensions. You can usually go to your image editing software and select Resize Image from the menu bar. 

The dimension of a photo refers to its width and height, which together determine the overall size and shape of the picture. You’ll then be able to adjust the width and the height of the image as per your needs.

Changing Image Resolution to Reduce Photo Size

How to reduce photo size this way? There is one more great option. Besides changing the width and height of an image, you can also reduce its size by altering its dimensions. The resolution of an image is defined by DPI or Dots Per Inch. On a PC screen, the maximum number of dots per inch you see is 72. Larger images are said to have an increased DPI. So, all you need to do is decrease the DPI according to your needs or to 72 to reduce photo sizes. You can perform this task simply by using any of the image editing tools. 

Choosing the Right File Extension to Decrease Image Size

How to reduce image size? Changing the extension of a file can help you save a lot of space. Some files such as .PNG and .BMP are generally bigger. Saving the file as a .JPG can be of help.

All you have to do is open the file on a software, choose Save As…, and select .JPG or .JPG when saving the file.

Software Solutions: Making Photo File Size Smaller

  • Photoshop: You can reduce the size of an image by using the Image Size option. Once you click on the option to resize the image, it will ask you for a new height, width, and resolution. Type in the new values and click save to have a smaller file. It's as easy as that. 

  • Lightroom: You can reduce the file size of an image during the export process. When exporting, simply adjust the dimensions and resolution in the Image Sizing section. You can also set a maximum file size if needed.

  • Online Tools: TinyPNG and JPEG-Optimizer are websites where compressed images have a reasonable level of quality. Their easy use doesn’t involve software installation.

  • Free Software: You can also make your pictures smaller using some of the free alternatives to Photoshop.

Tips on How to Reduce the MB Size of a Photo

First, try to compress the picture. Compression is a great way to shrink the image file size. There are several apps and online tools that can help you do it without losing too much photo quality. Also, some image formats, such as PNG, are inherently smaller than others. However, if you want to resize digital pictures in Photoshop, be aware that reducing the resolution too much can result in a loss of quality.

In this case, we recommend you check out How to Compress an Image Without Losing Quality.

Why Luminar Neo Stands Out in Reducing Image Size

How to Reduce Photo Size Without Quality Loss Image4

Luminar Neo is one of the best photo editors, making this job easy. It allows you to upload a file and perform the task. You can bring up the Export Menu by either selecting it from the Menu Bar or by pressing the shortcut keys “Shift+Command+E”.

You'll be asked to either sharpen or resize the image. Choose Resize in the window. It will bring on several other options, such as original, short edge, etc. You may choose one of these or set your desired size for your picture and reduce it. After that, click on Save, and you will have the file saved but in a smaller size. 

Luminar Neo's standout feature in image resizing is its commitment to preserving high photo quality, a crucial factor for professional work. The software’s AI tools adeptly handle the delicate balance of reducing file size while maintaining image integrity. This approach ensures minimal loss of detail and quality, which is often a concern during resizing.

By the way, after you have resized the image, try using photo editing presets; you will definitely like the result.

Advantages of Using Luminar Neo for Image Compression

  • AI-Powered Tools: Use Luminar Neo’s AI Sharpener and AI Upscaler to keep the photos clear even after compressing them. It is especially useful if you're concerned about losing detail during the process.

  • Newbie-Friendly Interface: Users with different skills will find this software easy to use. Go and see for yourself at the Luminar Neo Tutorial.

  • Batch Editing: Luminar Neo allows you to process numerous photos simultaneously, so your time is not wasted.

  • Extensive File Format Support: Luminar Neo can work with many file formats (including JEPG, PNG, and TIFF), which allows you to pick the appropriate format for online usage, high-resolution printing, etc.

  • Quality Management: When exporting images, Luminar Neo lets you adjust the quality to find the perfect balance between file size and image fidelity – which is crucial for both digital and print mediums.

Conclusion: Mastering the Art of Making Photos Smaller in File Size

How to Reduce Photo Size Without Quality Loss Image5

By now, you have learned several quick and easy ways to resize your files for online photo storage, email, or upload, regardless of your device or operating system. Each method has its own unique advantages, depending on your workflow and the platforms you use. Choose the one that works best for you, and share your images with ease!


How to reduce the size of a photo on iPhone?

You can resize the image using the built-in Photos app to reduce its file size by cropping and decreasing its resolution. Moreover, you can adjust your camera settings to take pictures in a space-saving format like HEIC rather than JPEG.

How to reduce image file size on Mac?

On a Mac, you can utilize the Preview app to reduce image file size. Open the picture in Preview, go to Tools, select Adjust Size, and then reduce the size or the resolution. Numerous third-party apps also can give you better compression options.

How to reduce image file size in Photoshop?

Open your image in Photoshop, then select File> Export > Save for Web (Legacy). Such an option helps to change the picture dimensions and quality. To minimize file size, choose a lower-quality JPEG format and use the Image Size options to adjust dimensions (if needed).

How to reduce image file size on Android?

You can reduce image file size on Android by using built-in photo editing tools to crop and resize the image. Various apps in the Google Play Store, like Photo Compress & Resize, allow you to reduce file size better. 

How to reduce image file size for a website?

You can use photo editing software such as Luminar Neo, Adobe Photoshop, GIMP, or Lightroom to reduce the picture file size by adjusting the compression, resizing the image, or cropping unnecessary parts of the photo.

How to Reduce the Size of a Picture | Skylum How-to(2)

Experience the power of Luminar Neo

Try free Try free

Written by

Anastasiya Shtanakova

Portrait Photographer

I find immense joy in connecting with people and capturing their essence through my unique perspective and camera lens. Primarily a portrait photographer, my portfolio is rich with images of individuals, each telling their own story. Beyond the camera, my passion extends to meeting a diverse range of people, learning about their interests and narratives, and bringing those stories to life in my post-production work.

Get started for free

Try out Luminar Neo for free for 7 days. No credit card needed.

Sent successfully!

Please check your email

Make sure it's a valid email address

👆 This app is available for desktop only. We will send you a link when you’re back on your computer.
How to Reduce the Size of a Picture | Skylum How-to(14)