You can add interesting effect to the picture with photo filter or remove color cast by applying photo filter of opposite color from dominant color which causes color cast.
Photo editors allow you to change (edit) the content of an image and to save it. Changes are for example applying some effects, correcting the colors, removing red-eye effects and so on.
A picture can be a painting, a drawing, and a photo. A image is JUST a photo.
Use unsharp mask to sharpen picture and bring more details to an image.
Passports must have a photo of only the individual applying for the passport. These are wallet sized photos and can be taken at any photo processing center.
No you do not. The image is still the right to that show.
conclusion of image editing
As usual, Image > Image Size but pay attention on image resolution.
how is an image done by photo-shot on a computer
You can do that from Edit > Content Aware Scale or from Image > Image Size.
Yes.
There are many photo sharing sites online. PhotoBucket, Flickr, Pinterest, Instagram and Picasa Web Albums are the most popular photo/image sharing sites.
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