How Do I Change the Number of Pixels in a Picture?

By Cameron Easey

The resolution of a picture is the number of pixels, such as 800 by 600. Changing the resolution or size of a picture may be needed when inserting it onto a Word document or adding it to the body of an email message. Many image programs are available to change a picture's resolution. To do this, open the picture file in a photo-editing program such as Windows Live Photo Gallery.

Resize a Photo

Step 1

Click the "Start" button, then select the option for "All Programs." Scroll through the list and click the option for "Windows Live Photo Gallery."

Step 2

Find and then click on the picture that you want to resize. Click the "File" drop-down menu and select the option for "Resize."

Step 3

Select a new size from the "Select a size" drop-down selection box. Click the "Resize and Save" button to save the picture with its new resolution. Also resize a picture to send in an email message.

Send Photo in Email

Step 1

Open the Windows Live Photo Gallery and select the picture that you want to email.

Step 2

Click the "Email" option on the toolbar. Select a new size for the picture from the options available on the screen.

Step 3

Click the "Attach" button.

Tips & Warnings

  • The total estimated size of a picture when attaching it in an email message needs to be less than 2MB.