Resizing / enlarging photos

[SHP]

there are two methods to do this: either of the methods
that the other person said are false, except getting a
third-party program to enlarge it, but that would degrade
quality. You can do two things like I said, one you can
change the DPI (dots per inch) for better chances of
printing bigger w/o degrading the quality or you can scan
at about 200 dpi and then enlarge it using Microsoft
Photo Printing Wizard, which will not degrade quality and
if it does, most likely it will be minimal. Of course,
larger DPI will mean larger file size and if you are
enlarging a smaller than usual photo by means of DPI, go
at about 300 dpi at least. DPI settings are listed in
your driver settings.

 

[Jose]

For 4x6 pictures I use 300 dpi, since they are saved to jpeg they become
fairly small, The dimensions, 1800x1200, are similar to what you get out of
a 2 megapixel camera. 2 megapixel is accepted as adequate for printing a 5x7
print.

If I had a small picture (2x3) I might scan it at 600 dpi. I won't get any
more data out of it but the file will be more consistent with other files
and I let the scanner hardware blow it up rather than software.

Whereas, if I had to scan an 8x10 in color I might drop down to 200 to keep
the file size under control

Anyway that's the type of thinking I put into it.