Tool that can reduce the image file size but not the quality.

I work with Photoshop for over 8 years now. If you have a huge quality loss when resizing them, then you're doing something wrong.

Obviously if you resize an image the quality will get worse. How are you resizing them? The image itself with CTRL + T or when exporting it?

Smush it!

http://www.smu****.com/ysmush.it/

ETA: WF has a problem with s-h-i-t, so just google smush it.

Free. Online. Easy to use.

Suzanne

I hope you are using "save for web" option from file menu in photoshop. Try gif or png format, to avoid the damaged part which is sometimes the case working with jpegs (especially when there are plain areas). pngs can be compressed as well (some online tools available too. google it) without quality loss.

Ken

Maybe try Irfanview its a good free tool with re-size capabilities

How big is the original file size? If it's an 8megapixel photo that is 10MB big then resizing it to 35kb will result in major quality loss.

Ifranview is definitely good but it doesn't do anything that Photoshop can't do.
The proper way to resize the file size in photo shop is File-> Save for Web & Devices. Then select PNG and it should give you a decent file size.

I use IrfanView for simple re-sizing & cropping of pictures, it will also open PSD files so you don't have to open Photoshop every time.


Watch in HD

It can be done without affecting the quality of the image by almost every software out there, whether it be photoshop or irfanview.

First of all, be aware of this part of the TOS for Yahoo Smush It: "

1. SUBMISSION OF YOUR IMAGES TO YAHOO!.
   You retain ownership to your images submitted to the Service. However, by submitting your images to Yahoo, you hereby grant Yahoo and its affiliates the following worldwide, royalty-free, non-exclusive, sublicensable and transferable rights and licenses: To temporarily host, cache, store, or modify your images to appropriate media formats, standards or mediums as part of the Service."
   
   - doesn't look worth it to me.
2. 
   Also, reducing file size in order to help loading time on the web is going to affect the quality of the image, if you go overboard with it especially. The real 'gotcha' is when it still looks ok on your monitor but someone else views it on a much larger monitor which is automatically increasing it's size - something to watch out for.

I have used Paint.net and Snag it to reduce image sizes without any problems!

Adobe Photoshop file resizing and (probably jpeg) image compression require some care and understanding.

Also, Every step in Photoshop must be done in the correct order, as many steps will affect subsequent steps. For example, you must keep an uncompressed original of every image (for future edits) and only do image resizing/"Unsharp Mask sharpening/Image Compression as the last steps.

I have some free tutorial advice on:
Free art tutorial - Image file formats for artists

My "Art Head Start" and "Visual Marketing" ebooks go into greater detail.

This is what I personally rely on and I never notice loss in quality:

Image Resizer PowerToy Clone for Windows | Free software downloads at SourceForge.net

Pretty straight forward; just right-click the image and select the resize option from the ensuing context menu.

Best tools Ive used that Ive had any problems with regarding quality when re-sizing images are:

- Paid: Adobe Photoshop

- Free: Paint.Net


Az

depending on the size you start with, odds are that you're going to get loss of quality going down to 35kb image, un-avoidable

unless its a line art image from illustrator, or something small to begin with.

It's a mistake to compress to a certain pre-determined file size. Each image is different - different numbers of pixels, different neighboring pixels.

Anything up to 50 Kb or 60 Kb is small enough for today's faster Internet - even though 30 Kb to 40 Kb is best.

Of course JPEG compression results in image quality loss - how could it not, with fewer pixels? The trick is to keep the image loss down to invisible or acceptable levels. An Adobe Photoshop JPEG compression of 30% to 60% can often be perfectly acceptable (40% to 70% "quality").

Also try other compressions. Sometimes you can compress more using a PNG format with a restricted number of colors in the pallette. It all depends on the unique qualities of each image.

That's why I like to use careful manual compression. These 1-click, one-size-fits all programs are not as smart as a trained user with a human eye and brain.

Don't suppose you're working on a Mac? Just because if so, Mac's built-in software Preview allows you to do exactly what you're talking about. Open the image in preview, select 'tools', then select 'adjust size'. Shrink to whatever size file you want, no loss in image quality. Super easy.