ACDSee- How can this be possible?

[jyeh74]

In ACDSee, you can edit your picture and resize it. So I resized an original picture 2048 x 1536 (581 KB) to 1500 x 1125. But the new SMALLER resized pic is LARGER size at 908 KB. How is that possible? I resize to a smaller pic, save it, and it turns out bigger file size?

What is even more strange is that when I run my mouse over the icon (without opening the pic), it says the dimensions are 1000 x 750. But when I click it, it opens in ACDSee, then it correctly states size as 1500 x 1125. Is there a problem with this? I resized it as 1500 x 1125, not 1000 x 750.

Just trying to learn the how a smaller resized pic can turn out bigger in size?

Thanks!

[guns1inger]

I don't know about your resolution issue, but the file size is no mystery. Most still image formats use some form of compression. The size is dependent on how much compression is applied. You don't say what format you saved your image to, however it is simply a case of using a format or compression level that is lower that the original, and therefore larger in size. You can make it smaller by using jpeg and choosing a higher level of compression, however like any lossy compression, the harder you squeeze, the more (visible) damage you do.

[jyeh74]

gunslinger,

These are all jpg files. But when I make the resolution bigger, it makes the files bigger also. When I make the resolution smaller, it makes the file bigger too. Something to do with compression? I'm not too familiar with compression. This happens when the files are small, like 500-700KB.

However, if the file is big, like 1.5-1.8 MB, when I make the resolution smaller and save it, then it is a smaller file size around 1.1-1.3 MB. Not sure why this happens when I start with smaller files.

[Midzuki]

Any really-decent image editor allows the user to control
the compression level of a .jpeg file (and the resizing method
as well). Had never heard of ACDSee until today,
so I cannot say how good or how incomplete it is.

===================

[Midzuki]

Have just checked: ACDSee is not an image editor,
it's just a photograph manager. Not very useful to
me --- a few tons of porn pics do not require much
organization --- I'm quite happy with IrfanView and
Paint Shop Pro.
++++++++++++

[bacardi/avt]

It could be that you add the EXIF information to the file. Like in photoshop when you use "Save as.." you also save this information to the file but if you use "Save for the webb" photoshop does not add the EXIF iformation. This combined with a low compression level may cause your problems.

This is what I mean can happen:

1. you open a small file that is very compressed.
2. you change resolution to a smaller size.
3. save the new file with very little compression and adding the EXIF info
4. you end up with a file that is bigger then the one you started with.