Image size-How to reduce it.

[EL34]

I have a file size limit on the forum so that people do not upload 1meg photo's, choke the postings and eat up server space.
Currently the max size per post is set to 1024kb
The max size per attachment is set at 800kb
Maximum attachments per post is set at 4
See my screen shot below

There are a number of ways to reduce image sizes so that it can be posted here.
You have to use a graphics editing program like Paint shop pro, Corel, Adobe photoshop, MS paint, etc.

Here's a few Tips
On schematics: Reduce schematics to 2 colors, black and white.
There's no need to have 16 million colors or even 256 colors on a black and white schematic.
You can reduce the file size a bunch by doing this alone.

On Non photo images: Save Non photo images as .gif files or .png files, they are smaller than .jpg files.

On Photos: Reduce the number of colors down to 256 or lower on photo's as a last resort. .jpg is the file format you should use on photo's

On all images: Crop the image to eliminate sections of the image that you do not need to see.
If there is something in the center of the image and a bunch of area outside that, crop the image so you only see the center area.

On all Images: Resize the image.
Example: You have a 1600 x 1200 image. Resize it down to 640 x 480 or 800 x 600 or 1024 x 768.

This image way too wide.
There's no need to have an image that extends way beyond the message area.
Please resize or crop your images

[EL34]

If you are linking to an image on the web, you can reduce the size using width and height tags
You can also resize an image that you have uploaded, but you must upload it first

First, use the Modify button to modify your post
Use use the Toggle view button if you cannot see the image tags



The image below was originally 1600 pixels wide, but I used the width tag to make it 800 wide

Use the width tage when re-sizing an image horizontally
If it's a very tall image, use the height tag instead of the width tag


If you use the width tag, the height will be adjusted automatically so that the image retains the same aspect
If you use the height tag, the width will be adjusted automatically so that the image retains the same aspect

The original image I posted here was 1600 x 451
This is what the code looked like when I went back to modify my post

Code: [Select]

[img width=1600 height=451]http://www.el34world.com/images/Img_6833.jpg[/img]
I edited the images below by changing the width tag and deleting the height tag

And here is the resized image that is 800 pixels wide

Code: [Select]

[img width=800]http://www.el34world.com/images/Img_6833.jpg[/img]

And here is the same image re-sized to 600 wide

Code: [Select]

[img width=600]http://www.el34world.com/images/Img_6833.jpg[/img]

[EL34]

Here's is an example of a non cropped image with lots of wasted space,
 and a cropped image that only includes what is important in the image

Click on the images below to see how wide 1024 pixels is on your screen

[EL34]

I found this on line site that can re-size and crop images for you and it is very easy to operate.
Go here and  follow my screen shots below - http://www.picresize.com/


(1) Choose an image on your computer or on the web
(2) Browse for the image
(3) Continue after you have selected the image




(4) Crop your Image. Drag your mouse over the image to select the area of interest. Then hit the Crop Selection button.
(5) If your image is larger than 1024 pixels, choose the make my picture, Fit to screen 1024 resolution



(6) Choose none for special effects unless you want special effects
(7) Save as JPG quality Good for pictures, or GIF for diagrams like schematics
(8) Hit the I'm done, Resize my picture button



(9) Click the save to Disk button to save your edited image back to your computer

[EL34]

This is the before and after on the image I used in the post above
I can't post the original because it was 2048 pixels wide

The before image below shows how much wasted space I cropped out of the original image

This is the before image which was 2048 pixels wide





And here is the after image 1024 pixels wide