Recently I read about a MAC user who didn't have the possibility to resize his images by the easy methods available for Windows users. I thought of how to manage this, and searched a bit on the internet for so-called online image resizers. Of course there are also special programs for each operation systems (OS). But a free online tool has the advantage of being independent of the OS. There are vast amounts of such programs available. Out of these I picked a more popular one with some special features and would like to give a short guide on how to use this online tool.
The web adress of the free online tool is: http://www.picresize.com
Before we start, here's some data and results:
Image to be optimized:
- file name: IMG_9233.jpg (typical name given by cameras)
- file size: approx. 1 MB (1000 kB)
- image dimensions: 2592x1944 pixels
- file name: rsz_img_9233.jpg (name given to optimized file by the tool)
- file size: approx. 60 kB (0.06 MB)
- image dimensions: 640x442 pixels
Now let's start.
1. Open the tool
We open the web browser and enter http://www.picresize.com in the adress bar.
2. Choose your image file
We come to the following screen and press "Browse" (red oval) to choose the file we wish to optimize.
3. Update your image file
We see the file name and directory of the chose file in the "Select Picture" field. Then we press "Continue".
4. Be patient
The horizontal blue/white spiral bar indicates we have to wait a few moments until our image has uploaded into the online tool.
5. Crop your image
The image is now uploaded and ready to be optimized. You see its thumbnail in the upper right corner. You notice that there is a lot of free space around the actual objects. With this tool you can also get rid of unnecessary free space surrounding your models. This is called "cropping". Following the instructions on the left side you can draw a dotted rectangle around your models (see thumbnail image). Then press "Crop Selection" to remove the unused space around your selection.
6. Choose the dimensions of your image
You will see that the thumbnail in the upper right corner has changed after successfully cropping your image. It now shows your selection. Now it's time to set the dimensions of the image (width and height in pixels). It's best to choose "Custom Size" and enter the desired width (640 pixels in width is usually enough). Be sure that you choose "Pixels" and not "Percent"! It is not necessary to enter a value for the height. The width/height ratio of your selection will be maintained.
7. Sharpen your image (optional) and confirm "Resize"
a) If your light source was not sufficent or if you had shaky handswhile you took the picture, it might be a bit blurry. Here you have the possibility to mark the box "Sharpen". Usually you'll simply take another picture that is not blurry and does not need further sharpening. In this case you just check the box "None".
b) Now scroll down a bit and seletc "JPG" as desired file type. Then click the field "Resize Pic".
8. Safe your image
You can now safe your image. Therefore press "Save to Disk".
A new window opens and you can choose the direction to safe your image. Press "Safe".
9. You're done!
You cropped it, (sharpened it), resized it, and reduced its file size. Well done!
That's it! There's even a quicker way in case you don't need to crop your image first. I will add this in a moment. For now let me quickly safe the written words above.
Edited by Legostein, 07 January 2010 - 09:45 PM.