You can use Adobe Photoshop on your PC or Mac to change the size of nearly any image. If the image has layers with applied styles, click the gear icon at the top-right corner of the Image Size window and select Scale Styles to scale the effects in the resized image.

Changing it to 200% would increase the size to 4400 px. For example, if the width of the image is 2200 px wide, changing the Width value to 50% will decrease the width to 1400 px. Then you can choose to grow or shrink the image size by a percentage of the original size.

If you don't want to specify the size in pixels, you can select Percent from the menus next to the Height and Width values.If you want to specify both the height and the width without one changing the other, click the small link icon to the left of the Width and Height blanks to unlink the two measurements.Unless you change the default settings, typing a new dimension for Width will automatically update the Height measurement to keep the proportions correct. Type the new dimensions into the Width and Height boxes.

How to resize an image on illustrator