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How to Resize Image in KB

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This wikiHow teaches you how to increase or decrease the size of an image.

Using Paint on Windows

Right-click an image and select Open with… . This action is in the pop-up menu.
Click Paint . Paint will automatically open with the image on most versions of Windows.
Click the Home tab near the top of the window.
Click Resize . The “Resize and Skew” dialog box will appear.
Check the “Maintain aspect ratio” box.
Set a new size for the image. To proceed, we:

  • Click the Percentage option to set the “Vertical” or “Horizontal” data area parameters to a certain scale to reduce the image size.
  • Click Pixels to enter specific parameters in the “Vertical” or “Horizontal” data area.
  • Enlarging an image can cause it to crack and lose quality.
Click OK .
Click File in the menu bar and then select Save as… .
Type a name for the file in the “File name:” data field.
Click Save . The image will be saved with the parameters you specify.

  • To save the image in a different format, click Save As… , then click the “Save as type: ” drop-down menu and choose one of the image formats:
  • GIF – suitable for web graphics. Small files.
  • BMP – suitable for web graphics. Compressed files.
  • JPEG – matches the image on the web page. Compressed files.
  • PNG – suitable for graphics and small web files. Larger files
  • TIFF – suitable for editing and storing images. Larger files.
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Using Preview on Mac

Open the image in the Preview app. Do this by double-clicking the Preview icon that looks like a blue image file, then clicking the File item in the menu bar and selecting the Open… action in the drop-down menu. Click the file in the dialog box and click Open .

  • Preview is an Apple-exclusive image viewing application that is automatically integrated on most versions of Mac OS.
Click Tops (Tools). This action is located in the menu bar at the top of the screen.
Click Adjust Size… (Resize).
Set a new size for the image. Select a new parameter or “Custom” from the “Fit into:” menu (parameter options).

  • If you select “Custom”, enter the parameters in the “Width:” and “Height:” data areas along with/or the number of pixels per inch/cm in the “Respution: ” (Resolution).
  • Enlarging an image can cause it to crack and lose quality.
Click OK .
Click File on the menu bar and then select Save . The image will be saved with the parameters you specified.

  • To save the image in a different format, click Export As… , then click the “Format: ” drop-down menu and choose an image format:
  • JPEG – matches the image on the web page. Compressed files.
  • JPEG-2000 – high quality, good compression. Smaller files.
  • OpenEXR – suitable for compressing video files.
  • PNG – suitable for graphics and small web files. Larger files
  • TIFF – suitable for editing and storing images. Larger files.

Using Adobe Photoshop

Open the image file in Photoshop. To proceed, double-click the blue application icon with ” Ps ,” inside it, then click File in the menu bar and select Open… in the drop-down menu. Click the file in the dialog box and click Open .
Click Image in the menu bar at the top of the screen.
Click Image Size… (Image Size). A dialog box will appear.

  • Choose Bicubic Sharper (makes the image sharper) if you are reducing the image size.
  • Choose Bicubic Smoother (makes the image smoother) if you are increasing the image size.
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Enter a size for the photo. Enter parameters in the “Width:” and “Height:” fields (other settings will be adjusted automatically). You can also change the number of pixels per inch/cm in the “Respution:” area of the “Document Size:” section.

  • Enlarging an image can cause it to crack and lose quality.
  • If you don’t want to keep the original aspect ratio of the image, uncheck the “Constrain Proportions” line at the bottom of the dialog box.
Click OK .
Click File in the menu bar, then select Save as… .
Enter a name for the image in the “Save As:” data area .
Select an image format from the “Format:” drop-down menu. The default format is specific to the Photoshop software. Other formats include:

  • GIF – suitable for web graphics. Small files.
  • BMP – suitable for web graphics. Compressed files.
  • PNG – suitable for graphics and small web files. Larger files
  • JPEG – matches the image on the web page. Compressed files.
  • TIFF – suitable for editing and storing images. Larger files.
  • EPS – suitable for the printing industry. Larger files.
  • Click Save . The image will be saved with the size you specified.

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