How do I alter the pixels?

I want to print pictures. If I save something from the web, like a ';.bmp'; with pixel dimensions of 280x220 , then I try to print the image to like a 4x6 or 5x7 photo, it looks so bad and distorted. Is there a way to alter the pixels so the enlarged printed pic looks as great as the one on the computer that is only like a 1x 2 based on the pixels. Also how to changed pic formats like a bmp to jpg?How do I alter the pixels?
Sorry, once a picture is taken with certain resolution, then it cannot be changed. Picture of size 280x220 is only for viewing on computer screen. You can print it, but it would be so small. A good measurement for photo quality is DPI (dot-per-inch)--the higher the number the better it would print. For example, if your printer can print 150 dpi, then the 280x220 picture will be printed as about 2x1. You can use software like Adobe Photoshop or any free one to convert from one format to the others.How do I alter the pixels?
If your getting the small pictures off the net, the truth is that you won't make it better by enlarging it. It will look like crap no matter what you do. The internet uses very low resolution in order for you to view it on the net easily.
It aint gonna happen! No software is capable of guessing what the missing info would look like! Dont waste your time trying! If someone were to find a way to do this, they would be filthy rich!
280x220 is really too small. Remember, you 'scale' or enlarge these pixels to fill up the photo. So what is a little 1x1 pixel block will be a 2x2 pixel block at 2x magnification, a 8x8 pixel block at 8x magnification, and so on.



Some software can smooth the image a little but never so that it will look really good. Download a higher resolution picture if you can find it.
Download Irfanview, this will let you play with pictures, you can reduce the picture quality and enlarge it but it wont look any better as the picture is already low quality.



As for changing a .bmp to a .jpg it is very simple all you do is open it with irfanview then go to save as and type the file name and then drop the box to get the different file extensions and click the one you want to change it to and save.



http://www.irfanview.com/