resize your photo

[drhugh]

Can you tell me the steps to resize a photo. I have both Adobe and Pisasa. I donloaded from my camera and want to upload to a for sale site but the site will not let any photo sized larger than 350KB and mine is 400KB Thanks

[SpywareDr]

FastStone Image Viewer (free)
http://www.faststone.org/FSViewerDetail.htm

Older faststone resize demo
http://www.youtube.com/watch?v=86AZqhmHTMQ

[Welshjim]

May I horn in?
I can resize images using most any graphics editor. If I use Irfanview, IV gives me two sizes for an image--"Disk size" and "Current memory size". Right click on the image and then Properties gives me "Size" and "Size on disk". All are in Bytes.
Size and Disk Size are the same. The others vary from 10% to 900%.
Which one is the size pertinent to drhugh's question or for determining whether an image can be sent by email?

[SuperSparks]

As you already have Adobe, you can change the actual size of the image in Image>Image Size. Or you can go to File>Save for Web & Devices, and in that dialog you can change the size, file type and see the resultant file size.

[SpywareDr]

The "KB" (KiloBytes) refers to the file size, (storage size, size on disk).

[Welshjim]

Let me ask again to be sure.
Using a typical image file on my PC:
Per Irfanview
Disk size 44.06 KB
Current memory size 378.32 KB

Per Right click on the image file /Properties
Size 44.0 KB
Size on disk 48.0 KB

Which is the size pertinent to the site drhugh refers to? Which is the size that email providers may care about?

[SpywareDr]

Memory size must be the amount of memory that Irfanview is using to display the image.

The disk size and size on disk are different because when Windows stores a file it uses complete clusters. So, if your file contained nothing more than a single character but your cluster size is 4,096 bytes, your 1-byte file will use up a complete 4,096 byte cluster to store that file.

[General Winters]

Let me ask again to be sure.
Using a typical image file on my PC:
Per Irfanview
Disk size 44.06 KB
Current memory size 378.32 KB

Jpegs are compressed files ( lossy compression ), and are normally compressed at 3 bytes per pixel (24 bit RGB)

When you open the file in the editor it is decompressed into memory, so the memory size is width in pixels x height in pixels x 3, the last "× 3" is for 3 bytes of RGB color information per pixel for 24 bit color (3 RGB values per pixel, one 8-bit byte for each RGB value, which totals 24 bit color).

So for example a 1024 x 768 image would be 1024 x 768 x 3 = 2359296 bytes

= 2304 kilobytes = 2.25 megabytes

Since jpegs are as mentioned compressed with a variable compression, the disk size will vary.

You can reduce the size of an image by either resaving and compressing further or resize/resample in the Ifranview image menu ( or ctrl - r )

Resizing would probably be the best as compressing further an already compressed image can be problematic.

[Welshjim]

I think you are telling me that the size of that "typical" image file is 44KB or 48 KB for sending by email since the file is compressed.
I am not sure that size is the one drhugh is after. However a graphics editor can certainly resize per General Winters' advice.