Questions about reducing a file's size by automated pattern recognition, and the resulting changes in image quality.

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18
votes
9answers
99k views

Facebook: Ways to preserve image quality of uploaded images?

After uploading an image, Facebook converts it to a new image. Their conversion process introduces artifacts and mottling to the magenta-ish parts of the image. Original image: Facebook's ...
1
vote
4answers
2k views

Changing File Sizes in a PDF

Is there a way when exporting a .psd as a .pdf to make the file smaller? My client always has me work in Photoshop and send them finished work as .pdf's, but they say the files are too big. These ...
1
vote
1answer
16k views

Why is my PDF size from my InDesign Export still large?

I'm doing class project that is a four-page, seven-image document with very little text. The project must be submitted as a PDF under 300 KB. However, when I export the document under the smallest ...
8
votes
5answers
9k views

The most advanced JPEG image compression on mac?

Sometimes i work with JPEG files for my web designs. There are occasions where the PNG format is not suitable.. There are several optimization techniques for the PNG format, but I noticed that for ...
0
votes
3answers
10k views

Create jpg image with good quality

I'm trying to save a jpg image but it's getting a bit blurred. I have it nicely in my image editor, but saving the image is not giving the quality I need, even with max quality defined. If I save it ...
6
votes
9answers
3k views

Tools for *lossy* PNG compression?

I'm trying more and more to get by sans PhotoShop for my personal/freelance work. I do primarily web work these days and don't do enough side gigs to justify keeping up with the Creative Suite beast. ...
3
votes
2answers
335 views

Compress large PDF files in Illustrator

I am an unexperienced Illustrator user, so please bear with me if my question is very stupid: I have a large PDF file (5 MB+) [1] which is generated from a large dataset. The amount of details in the ...
2
votes
1answer
1k views

Why does a JPEGs file size increase after cropping and saving for web in Photoshop?

When I save my image for the web in Adobe Photoshop, the produced jpeg is larger than the original jpeg file. The only alteration done to the image is cropping. How is this possible? I am saving the ...