IRFANVIEW BASICS

Working With Digital ImagesUsing Irfanview

Thursday, 15 March 12

RESIZING LARGE IMAGES USING IRFANVIEW

• If you do not have Irfranview, please download from the Irfanview website at:http://www.irfanview.com

For the sake of this tutorial, please make a folder on your DESKTOPName it: pictures


http://www.irfanview.com/%22%20%5Ct%20%22_blank

http://www.irfanview.com/%22%20%5Ct%20%22_blank

Put the photo you want to resize into the "pictures" folder on your desktop. For the sake of this tutorial, please use a large picture.

Double click the Irfanview icon on your desktop to open the photo program. The icon looks like this:


STEP ONE

With your mouse, left click on FILE on the menu bar, continue holding your left button down and drag your cursor down to OPEN


STEP TWO

A window (as you can see below) will open. Go to your "pictures" folder on your desktop and you should see the image you're going to resize. Left click on it once to select it, then click the OPEN button.


STEP THREE

To determine the size of your image, left click on IMAGE on the menu bar and drag your mouse down to RESIZE/RESAMPLE


STEP FOUR

You can see that the width of my picture is 720 pixels, the height is 577 pixels and the DPI (dots per inch) is 72.

Too big!!

That translates into 10 x 8 inches (there are 72 pixels per inch).

We need to reduce the physical size of the image. The 72 dpi is fine.

Make sure the PRESERVE ASPECT RATIO box has a check mark in it.


STEP FIVE

Erase (select and delete) the 720 in the WIDTH box and type 432.

432 translates to 6 inches. (remember -- 72 pixels = 1 inch).

Because you have the PRESERVE ASPECT RATIO checked, the width will automatically change to 346 (4.8 inches).

If you have any number other than 72 in the DPI window, (e.g. 300, 150) change it now by erasing your number and typing 72.

Click OK.


STEP SIX

Now you need to 'save' your image with its new size.

On the menu bar, left click on FILE, drag your mouse down to SAVE AS. (If you simply click SAVE, you will override your original image, which you might not want to do. I always keep my original images.)


A window will open. Make sure you're saving your new image in your 'pictures' folder on your desktop so you don't lose it.

Browse to your desktop/pictures if it doesn't automatically come up in the LOOK IN: location bar at the top of this window.


Give your new image a new name -- I have called mine Mountains. Type this new name in the FILE NAME: window. SAVE AS TYPE: drop menu down and drag your mouse down to JPG - JPEG Files to select the .jpg option. Click the SAVE button.

You now have a new imagewhich is 432 x 346 pixels (6" x 4.8") at 72 dpi. A much more manageable image size to send your friends via email.


CROPPING IMAGES USING IRFANVIEW

With your newly resized image open, LEFT click on the image to determine the top left corner of where you'd like to begin your cropping and holding your left mouse button down, drag over your image to the right and in a downward motion till you 'select' the area you'd like to KEEP.

If it doesn't work right the first time, left click on it again, and drag again until you're happy with the area you'd like to save.


Now go to EDIT, drag your mouse down to Crop selection and let go of your mouse button.


Our newly cropped and resized photo.

You need to save it again because you have made changes to the image since your last save. So click on FILE then drag your mouse down to SAVE (name will remain as Mountains.jpg), click SAVE.


Technology

IRFANVIEW BASICS