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Reduce JPEG (.jpg) files for online viewing
Today's cameras often leave the photographer with some really big files to deal with, and those picture files often aren't optimized to view on the web. Large files not only take up server space, they also take a lengthy amount of time to download for users with slow Internet connections.
Unless you're going to actually download and print the photo onto paper or another medium, there is little need to have the photo be kept at its original size from the camera.
As a general rule, photos that are to be displayed online should be no greater than 72 dpi (dots per inch) and about 1500-2000 pixels wide. This should suffice to fill the entire screen width (and then some) of most monitors. Picture file sizes should also be measured in kilobytes (KB), not megabytes (MB). If the photo you're uploading to the web is 1 MB or more, it's probably too big if you just want to view it on a monitor.
One thing to remember... If you reduce a file down to, say, 300 pixels wide, do not force your web page uploader to display it at a size larger than 300 pixels wide. Images that are "stretched" or displayed beyond their original sizes will become pixelated (jagged edges) and possibly distorted, causing them to look bad on screen.
To reduce the size of your photos, use these resources:
Makeup - Makeup is a free program that you install on your computer. It enables you to resize your jpeg files and do a few other things to them so they're optimized for the web. To use, open the program and click the "Open" button to find the picture you wish to resize. Enter the desired width (in pixels) and click "Resize Image." Click the "Save" button to bring up the save window. You can adjust the compression down to about 70 to reduce your file size even further without severely changing the quality of the image. Click the "Save As" button to save your file with a new name WITHOUT spaces. You can use underscores or dashes in the file name. (*WARNING: Clicking the "Save" button will overwrite the original file. Always use "Save As")
(*Hint: add "WEB" to the end of the file name before the .jpg extension to remind yourself that it's a web-ready photo.) Upload the web-ready file to your website.
reduceyourpicture.com - This is a free online service that reduces your files via the web. Choose which file size you want (200 pixels wide, 600 pixels wide or 1000 pixels wide). Browse for the file on your computer and upload your original image to this website. Once the website converts the image, it will take you to a new page where it displays the photo in the size you chose. Right-click on the photo and save the .jpg file to your hard drive or network drive. Be sure to rename the file first without spaces (* again, adding "WEB" to the file name is useful). Upload that file to your website.
Dropic - For Mac users, download the program Dropic. Follow on-screen instructions.
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