Photoshop Screen Shot
This screen shot demonstrates a simple crop of an image that is straight
to begin with. No straightening needed here. It is an artistic
issue of what to leave in and what to leave out.
After the crop I select: Image/ Image Size and then make sure resample and
constrain proportions are both checked, set the resolution to 85 and then set
the width to 448 and click OK. Finally, I save as .jpg using the low
quality setting. The end result is a file size 59 KB.