compressing files

Archived from groups: microsoft.public.windowsxp.basics (More info?)

I have some photo files that I would like to compress so that I can
email them.

I have XP Pro and wonder how I might compress these jpgs. Is there a
program already in Windows to do this or do I need to get a program. If
there's one in Windows, how do I use it?
Thanks

Archived from groups: microsoft.public.windowsxp.basics (More info?)

If you're looking for something simple, you might want to take a
look at the Image Resizer tool that is part of the Microsoft
Power toys. It's available here (listed on the right towards the
bottom of the page):

http://www.microsoft.com/windowsxp [...] rtoys.mspx

Once installed, you can right click on the image you want to
email and select "Resize pictures" from the menu. Click on the
Advanced tab on the box that pops up to see more options.

Nepatsfan
"richard" <rmk@wonderland.net> wrote in message
news:e0iZScp9EHA.1404@TK2MSFTNGP11.phx.gbl...
>I have some photo files that I would like to compress so that I
>can email them.
>
> I have XP Pro and wonder how I might compress these jpgs. Is
> there a program already in Windows to do this or do I need to
> get a program. If there's one in Windows, how do I use it?
> Thanks

Archived from groups: microsoft.public.windowsxp.basics (More info?)

Wesley Vogel wrote:
> XP already has an option...
>
> Windows can resize pictures you send in E-mail so that they transfer faster
> and are easier to view by the recipient.
>
> To send a photo in e-mail
> 1 Open My Pictures, and then open the folder containing the photo you want
> to send in e-mail.
> 2 Click the photo you want to send.
> 3 Under File and Folder Tasks, click E-mail this file.
> 4 In the Send Pictures via E-mail dialog box, click Make all my pictures
> smaller.
> Windows makes a smaller photo file and attaches it to an e-mail message
> that displays a default subject and text message.
>
> 5 In the To box, type the e-mail address of the person to receive the
> picture, change the subject and message text if you want, and then click
> Send.
>
> Notes
> • To open My Pictures, double-click the My Documents icon on your desktop,
> and then double-click the My Pictures folder.
>
> • Use this procedure for photos of file size greater than 64 kilobytes (KB).
> To check the file size of your photo, right-click the file, click
> Properties, and look at Size.
>
> • To send the photo without reducing the size of the file, click Keep the
> original sizes.
>
> • To change the settings for the size of the image, click Show more options.
>
> •If you have many pictures to share with others, you can publish them to the
> Web instead of sending them in e-mail.
>
> To publish pictures and documents to the Web
> http://www.microsoft.com/resources [...] howto.mspx
>
All goes well until I get to the point of reducing the size of the
image. Then I get an error pop up asking that I send the report to
Microsoft. I tried several times--closing McAfee and making the files no
longer read only, but nothing helps.
Any ideas? The size of the file I experiment with is 840kb. It's a photo
off a cd I got from Wolf Camera.

Archived from groups: microsoft.public.windowsxp.basics (More info?)

André Gulliksen wrote:
> richard wrote:
>
>>I have some photo files that I would like to compress so that I can
>>email them.
>>
>>I have XP Pro and wonder how I might compress these jpgs. Is there a
>>program already in Windows to do this or do I need to get a program.
>
>
> Size of JPGs are depending on two factors: Resolution and compression.
>
> Resolution is the number of pixels and colors used. Photos are usually in
> real color, i.e. 24 bits, and since one byte is 8 bits then one pixel takes
> up 3 bytes. Thus a picture from a 4 megapixel camera takes up 12 megabytes
> in uncompressed form.
>
> This uncompressed picture is then usually compressed using JPEG. The thing
> with JPEG is that it is a lossy compression algorithm. This means that when
> you compress the picture, details are taken out to decrease size. So once a
> picture is compressed to JPEG, it cannot be uncompressed to an excact
> replica of the uncompressed original. How much detail is lost is depending
> on how much you want to compress it. Usually this is a parameter between 1
> to 100.
>
> I am not aware of any built-in tools in Windows that lets you alter both of
> these factors. However, there are plenty of free alternatives. A simple
> viewer program, such as XNView or IrfanView (both come highly recommended),
> let's you resize your pictures and save them with different compression
> ratios. They are also capable of converting a whole bunch of pictures in a
> batch operation, so you don't have to do the tedious work manually on
> hundreds of pictures.
>
> How much you wish to compress may depend on personal preferences, but for
> mailing you can get by with resolutions between 1024x768 - 1600x1200. You
> should probably keep compression between 30 and 70. A 1600x1200 (ca 2
> megapixels) JPEG picture with compression level 50 should take up little
> more than 100 kB. But with lower resolution and higher compression you can
> easily get pictures in 50 kB or less, still with more than good enough
> quality for on-screen viewing.
>
>
Thanks for all the good information.