[NMUG] increase size of photos

[Simon Royal]

Hi

Blowing up a photo larger than its original size will start to decrease the image quality.

Photoshop does a good job of keeping the image quality as best as it is can.

To maintain the quality, you could drop the resolution. For print 300dpi is the normal dpi for pictures, for web it is 72dpi. You could drop the dpi to 250 or 200 at minimum for print, this would rescale the photo a bit larger in dimensions.

In general increasing a photo is never a great idea. There are specialist software tools around but these will merely interpolate.

Simon Royal

--- Catch me on Twitter: http://twitter.com/SimonRoyal or Skype: Simon-Royal





----------------------------------------
> From: karl.hortt at btinternet.com
> Date: Mon, 8 Mar 2010 12:25:45 +0000
> To: nmug at nmug.org.uk
> Subject: [NMUG] increase size of photos
>
>
> Hi All,
>
> A friend has some photos in iphoto that he wants to bigger
>
> I believe he means that he wants make the dimensions bigger for an advert in a magazine
>
> How does he go about doing this ?
>
> regards
>
> Karl
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