JPGs lose quality every time you save them? Is this true or False?

killay · 05-13-2009, 07:11 AM

Hi

A few months ago I came across a website which told that each time you save a jpeg it loses quality. I never stood still on this strange happening till now (don't even know why).

So my question here is:
Is this true or not?

regards

**enlytend** · 05-13-2009, 04:36 PM

Yes, because every time you save the file you recompress it, which further compresses areas of the image which already lost information due to PREVIOUS compuression. The amount of lost information in the image increases each time you save it.

If you're going to do a lot of editing and saving, do a "save as" to a lossless format, edit THAT file, whey you're done you can save the edited file as a jpeg again (if you want).

Sunite · 05-29-2009, 07:09 AM

Originally Posted by enlytend

Yes, because every time you save the file you recompress it, which further compresses areas of the image which already lost information due to PREVIOUS compuression. The amount of lost information in the image increases each time you save it.
????: NamePros.com http://www.namepros.com/graphic-design-flash/582627-jpgs-lose-quality-every-time-you.html

If you're going to do a lot of editing and saving, do a "save as" to a lossless format, edit THAT file, whey you're done you can save the edited file as a jpeg again (if you want).

Very true, i would never use jpeg as it loses my high quality picture, i usually use .PNG which is great for anything, it may be a bigger file but i still love png

Ferlyn · 06-08-2009, 09:34 PM

I seldom uses JPEG format, cos it damages the quality of your picture, but i do chooses it sometimes specially when the picture is to big.
Always use PNG as much as possible, if you want good quality pixels

lizmarcus7 · 06-13-2009, 01:20 AM

Yes, that's true.
The pixels are get damaged resulting to poor quality of images.
Its better if you'll use PNG.

shockie · 06-13-2009, 11:10 AM

stick with lossless pngs unless you're want a transparent background, in which case try a gif.

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05-13-2009, 07:11 AM	THREAD STARTER #1 (permalink)
killay NamePros Regular Join Date: Jan 2008 Posts: 288	JPGs lose quality every time you save them? Is this true or False? Hi A few months ago I came across a website which told that each time you save a jpeg it loses quality. I never stood still on this strange happening till now (don't even know why). So my question here is: Is this true or not? regards __________________ DNShrine.com -> Look for expiring domains. Goowik.com -> Webdesign articles, tutorials, inspirations, ... UNOpixel.com -> Very cheap advertising. WorkBreakArcade.com -> Arcade website with amazing highscore script.

05-13-2009, 04:36 PM	#2 (permalink)
enlytend Forum Moderator Join Date: Aug 2006 Location: USA Posts: 2,041 Follow @enlytend	Yes, because every time you save the file you recompress it, which further compresses areas of the image which already lost information due to PREVIOUS compuression. The amount of lost information in the image increases each time you save it. If you're going to do a lot of editing and saving, do a "save as" to a lossless format, edit THAT file, whey you're done you can save the edited file as a jpeg again (if you want). __________________ Enlytend Solutions - Internet marketing and web development, specializing in local search optimization Was my advice helpful? Please consider a small donation to the National Canine Cancer Foundation - a tax deductible 501(c)(3)that directly funds cancer research

06-13-2009, 11:10 AM	#6 (permalink)
shockie Senior Member Join Date: Dec 2006 Posts: 4,702	stick with lossless pngs unless you're want a transparent background, in which case try a gif. __________________ - shockie

06-08-2009, 09:34 PM	#4 (permalink)
Ferlyn Account Closed Join Date: Jun 2009 Posts: 7	I seldom uses JPEG format, cos it damages the quality of your picture, but i do chooses it sometimes specially when the picture is to big. Always use PNG as much as possible, if you want good quality pixels

06-13-2009, 01:20 AM	#5 (permalink)
lizmarcus7 Account Closed Join Date: Jun 2009 Location: Southeast Asia Posts: 57	Yes, that's true. The pixels are get damaged resulting to poor quality of images. Its better if you'll use PNG.

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