Photoshop increase file size

[msignore]

Hello. I've a JPEG image (downloaded from the web), its size is 414 bytes. When I open it in Photoshop CS5, and save it with a different name (from "Save for Web.."), new image size is 1280 bytes!! In the "Save for web" panel, it shows image size is 380 bytes (photoshop says size will be 380 bytes, but when it saves, size is 1280 bytes) Why??? Can you help me??? [Sorry for my BAD English!]

[Steve]

Post the image here, I want to try it.
It should be smaller not larger as a GIF file.

[msignore]

Here you are (the original image):

Thanks.

[dv8_fx]

You're kidding!....

No offence meant... was taken aback by how small the image was.

I couldn't seem to replicate what you could have done.... unless you can show us a screenshot of your save for web window.... maybe from there we can see what went on to do this....

[Steve]

On the drive I'm getting 5.95k for the jpg and 1.4k for the gif.
In PS the jpg shows as 2.19KB or 2,242 Bytes the GIF is 345 Bytes.

[msignore]

Screenshot attached.
The output from "Save for web":

[Steve]

Oh you're saving to JPG, I'm assuming to GIF.

Save for web strips the EXIF data, sets the resolution to 72-dpi, and converts the image to 8bit mode if it's not already.
It should be smaller.

I don't know.

[msignore]

Thank you.
I think, I should use another software, like GIMP ..

[Paul MR]

Photoshop Save for Web CS3 or previous versions stripped the exif from the file, Photoshop CS4 and CS5 are different, only if you select NONE will the exif and PPI information will be stripped.
In this case you are retaining exif information as you have selected to keep Copyright and Contact Info.

[msignore]

Thanks Paul. When I removed metadata (Select "None"), file size decreased.

But a question, what is the metadata? and what is the difference between "None", "Copyright" and "Copyright and Contact Info"??