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How to Split an Image in Photoshop

Published: 02/06/2021

Splitting an image into equal sections may be required due to multiple reasons. You may need to apply different effects and adjustments to separate sections, use them for social media grids, or print them separately to make a large banner. Here is how to split an image in Photoshop according to appropriate dimensions.

How to Split an Image in Photoshop Using Three Ways

Whenever we need to divide an image into sections, you may feel concerned about doing it right. There are a lot of things to consider, such as the pixel dimensions and appropriate size of sections. If you try to do it manually, it will certainly feel impossible.

Thanks to the intuitive tools in Photoshop, splitting an image is a quick process. You can effectively divide an image into as many parts as you want using the Guide Layout, Slice tool, Ruler tool, and the Marquee Tool. You can later export the sections as separate images effortlessly.

Below, we will explain the processes so that you can follow them to split images accurately. 

Split an Image into Multiple Sections Using the Slice Tool

The slice tool conveniently divides an image into equal portions without you needing to work out numbers. Here is the complete process of using the Slice tool option:

Open a New Image and Form its Duplicate Layer

  1. Import the image in Photoshop. You can create a new document with a blank layer according to a specific layout and then paste an image. Or, you can directly open the image by using the Open button.
  2. Create a duplicate layer of the image. Select the background layer and press CTRL + J (on Windows) or Command + J (on Mac) to form a duplicate layer. This step is essential to ensure non-destructive editing.

Use New Guide Layout

  1. Once on the new layer. Go to the View menu on top and select the option New Guide Layout.
Opening a New Guide Layout
  1. A dialog box will open, where you need to make a few adjustments. First of all, select the number of columns and rows, which will determine the number of sections you want in the image.
  2. Keep the Gutter value zero in both columns and rows, as this value determines the distance between the guides, which we do not want while splitting the image.
  3. Click on Ok.

Use the Slice Tool for Splitting

  1. Grab the Slice tool from the toolbar on the left-hand side. It is bundled up with the crop tool and is represented with a knife. 
  2. Now go to the View menu once again and make sure the Snap option is checked.
  3. On the options bar of the Slice tool, choose the option to Slice From Guide. 
Using the Slice From Guide option
  1. You will now be able to see the number of sections with a blue selection around it. 

Saving the Divided Sections of the Image Separately

  1. Now Save these divided sections separately into a folder on your computer. There is a different way to save these sliced images as you can not do so with the usual save and save as tools.
  2. Go to the File menu on top. From the Export option, select Save for Web (legacy). There is a quick Photoshop keyboard shortcut for this function that is ALT + SHIFT + CTRL + S on Windows and OPT + SHIFT + CMD + S on Mac.
  3. From the Save for Web dialog box, select the type of the image as JPEG, and choose the desired quality. 
  4. Click on Save.
  5. Another pop-up will open, asking you to select the destination folder. We highly recommend making a new folder in the destination to keep these sections off the image separate and organized.
  6. Also, there is an option called Slices at the bottom of this popup. There will be three options to choose from this drop-down. Choose All slices to save all the sections of the split image. 

Split an Image in Half Using Marquee Tool

When you need to divide an image into two equal parts, the marquee tool can help you with that quite easily. In this method, we will use the New Guide option to help with the middle point.

  1. Open the image that you intend to split in half in Adobe Photoshop CC.
  2. Make a duplicate layer by using the right click option (right click on the Background layer and click Duplicate Layer) or use the keyboard shortcut CTRL / CMD + J. You don’t want to end up with a split image and losing the original one.
  3. Now go to the View menu, and select the New Guide option.
  4. From the Popup that appears, select whether you want a horizontal division of the image or vertical. Input 50 % in the position value. You will see that a guiding line will appear in the middle of the image.
Splitting an Image in Half Using a Marquee Tool
  1. Now select the Rectangular Marquee Tool from the toolbar.
  2. Make a selection according to the guide and select half of the image. 
  3. Now press CTRL + J on Windows or CMD + J on Mac to make this selection a new layer. 
  4. Hide the other layers to view the half section and use it for any purpose that you want. Mostly, this method is used when you need to apply two different Effects/ Masks/ Gradients to the split sections.

Split an Image in Half Using the Ruler Tool

Another quick method to cut the image into two parts is by using the Ruler Tool for guides. 

  1. Import an image into Adobe Photoshop CC.
  2. Do the same standard practice of duplicating the background layer. 
  3. To get the idea of the middle point of the image, press CTRL + T on Windows or CMD + T on Mac. this will enable the transform tool, which we need to see the bounding box in the middle. 
  4. Select the Ruler Tool by pressing CTRL + R on Windows or CMD + R on Mac. It will show the measurements on the horizontal and vertical axis of the image. Wherever you place the cursor, the position will be indicated on the ruler.
  5. Note the position of the bounding box along the horizontal or vertical axis, depending upon whether you want to split the image vertically or horizontally.
Bounding box at the center of an image
  1. Using the Marquee tool, make a selection of the exact half of your image.
Splitting an Image in Half Using the Ruler Tool
  1. Press CTRL + J on Windows or CMD + J on Mac to put this half section into a new layer. 
  2. Or, copy the selection using CTRL / CMD + C and paste it onto a new document.  

Common Uses of Split Real Estate Images

Splitting the image is a frequently used functionality, especially in real estate photography. 

  1. Usually, the images used for marketing material like flyers and brochures require displaying interior and exterior views in varying effects. For this, you can simply split the view in half and apply two different effects on each section, like a day and night view or a cool and warm color gradient.
  2. Multiple sections of an image are uploaded on Instagram, where the complete image can be viewed as a puzzle when you open the Grid. Styling the Instagram grid layout is a prevalent tactic for promoting particular properties. 
  3. You can also split a big panorama image into multiple images and post them in a single Instagram post to get a swipeable panoramic view.
  4. You may wish to show a specific section of an image in-depth, for which you need to split that part of the image.
  5. Apply different effects on the split sections and merge them later to create an eye-pleasing collage of a single view. 
  6. You can print a large image by splitting it into sections according to the print paper size and later joining them together.

Conclusion

With the advent of image editing software like Adobe Photoshop CC, dividing an image can be done quite accurately, and that too in a matter of minutes. You can create as many sections of the image as you want. Moreover, you can save them as separate files to use in whatever way you want. 

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