When you convert a batch image format or resize it, you typically use Photoshop or acdsee, and we can do that by using the "Send To" feature of Windows XP.
First, put the images that need to be converted into the same folder.
1. BMP converted to JPG
In My Computer, select all of the image files you want to convert, click Send the selected items in e-mail message under File and folder tasks on the left side of the window, send a photo by email window, select Shrink all photos, click OK, and if there are no profiles on your system, You will be asked to create a new or direct call to Outlook or OE, and you will see that the image is converted to JPG in the attachment bar. Select all the attachments and copy the images to the destination folder.
2. Reduce image size
If the image is too large, you can make the image smaller by using the above features. Click Show more options to see three options. When you select the appropriate size and click OK, the image size is automatically reduced and appears in the attachment bar.
In fact, Microsoft has the software we need every day is ready, but it is relatively speaking. If you are a professional, you will choose a professional tool.