Resolutions

[Gulper]

I have an jpg.image on the internet which for copyright reasons may not be displayed at highe
than 21 dpi
I used Paint shop Pro 8, Photo Impact SE and Irfanview to verify the resolutions before I uploaded my jpg to the web
I now find that Microsoft Photo Editor contradicts these 3 applications and shows the resolutions to be 25 dpi
Why is this? which program shows the correct resolutions
http://arrancoast.co.uk/busimages/image0141.jp

Thank you

 

[Bob Buckland ?:-\)]

Hi Gulper,

The pixels per inch is a multiplier/value that can be saved within some graphic formats, such as JPG. (Pixels have no set size).
You have embedded the 21 ppi value in this graphic and if you use MS Office Photo Editor (now discontinued) throug its
File=>Open=>[Properties] before opening the graphic you will see that it does recognize the 21 PPI value.

However, working within MS Office Photo Editor the minimum settable value is 25 PPI. If you open the graphic in Photo Editor then
use File=>Properties and try to change the value from 25 to 21 you should get a warning asking you to select a value between 25 and
500.

Storing the value internally to a graphic means that it is available to the using application to help in determine what size you may
have wanted the graphic to be. It can also be ignored by different graphic display software.

========
I have an jpg.image on the internet which for copyright reasons may not be displayed at higher
than 21 dpi.
I used Paint shop Pro 8, Photo Impact SE and Irfanview to verify the resolutions before I uploaded my jpg to the web.
I now find that Microsoft Photo Editor contradicts these 3 applications and shows the resolutions to be 25 dpi.
Why is this? which program shows the correct resolutions.
http://arrancoast.co.uk/busimages/image0141.jpg

Thank you >>
--
I hope this helps you,

Bob Buckland ?
MS Office System Products MVP

*Courtesy is not expensive and can pay big dividends*

U.S.: MS Sweepstakes & Office 2003 Contest/Trial Software
http://microsoftofficecontest.com

Office 2003 explained
http://microsoft.com/uk/office/editions.asp

 

[Gulper]

Hi Bo
That is a neat trick, opening the properties , before opening the image
I can't wait to tell the hydrographics officers about that one

The image in question is a section of an Admiralty Chart and th
Hydrographics Office own the copyright. They would only allo
me to publish the image on the web if the resolutions wer
21dpi or less. This I did using PSP 8, The Boys at Hydrographic
were not happy saying my image was 25dpi. They were of cours
using MS Photo Editor. They obviously don't know what you know :

Many Thanks