Photo Compressing Software
Pictures taken on a good quality digital camera are large, often 8x10 inches or larger, and the files are often too big to work with and store efficiently. You can resize the pictures to make them smaller, but compressing the file can make the file smaller while retaining the image size.
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Lossless vs. Lossy Compression
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Lossless compression makes the file smaller without affecting the image quality and can be completed with PNG and TIFF files. Lossy compression is often completed with JPEG images and can affect the quality of the image if compressed too much.
Why Compress Images?
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Compressing images that are uploaded to a website makes the page load faster and use less bandwidth. Emailing images is also easier and quicker when the images are compressed.
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How to Compress Images
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Image-editing software such as Photoshop or Paint Shop Pro can compress images using a "Save for Web" or "Image Export" feature. You can download image compression software from free or shareware software sites; these are good for batch compression or if you find Photoshop confusing to use. There also are online applications that will compress images right on the Web.
Compressing vs. Archiving
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Compressing generally refers to reducing the file size of an image while keeping it in an image file format. Archiving also compresses the file size, but stores a group of images in one archived file which must be unpacked if you want to view the images.
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References
- Photo Credit appareil photo en main image by John Maldoror from Fotolia.com
