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why do jpg files lose data, and what other formats would you recommend?
I have been told that .jpg files lose data each time they're opened, and I've seen photos I have uploaded to Facebook deteriorate as people view them.
Why are they set up this way?
Does burning the files to a CD halt the deterioration?
I don't seem to have a setting on my (Canon Powershot S3) camera to change the format images are saved in; is there another place to change such a setting?
Is there any software that will automatically convert all the .jpg files in my folder system (I have thousands of family photos from 1891 to the present archived in a heirarchy of folders) to another format?
What format would you recommend?
5 Answers
- ckm1956Lv 71 decade agoFavourite answer
Merely OPENing a jpg file doesn't cause deterioration. Saving / changing the file does cause deterioration.
JPG files are compressed to save space. It 's the repeated compression that causes a quality drop.
If your camera lets you, use the highest quality setting you can.
- David DLv 71 decade ago
JPG files don't lose data each time they are opened. They lose data when they are saved (they throw away quality in order to reduce the file size).
- 1 decade ago
jpeg is a great format and will not "deteriorate". jpegs do a great job of compressing files. if you wish to upload them onto your facebook, it requires a jpeg. dont waste your time on gif files. i would recomend changing your camera to a raw or tif file as they have much more editability and wont hace as much noise (grainy look). you can them compress them into jpegs later.
