Image downsampling

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CPHDH Admin edited this page May 10, 2017 · 6 revisions

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It is usually best to reduce the dimensions of the image before lowering the resolution.

Adjusting the Pixel Size

Mac: In Preview, go to "Adjust Size" under the "Tools" menu and decrease the length and width dimensions
PC: In GIMP, go to "Scale Image" under the "Image" menu and lower the numbers

Adjusting the Resolution

Mac: Use the Preview application. Go to "Save As" under the "File" menu. Use the sliding "Quality" scale until you reach the desired size
PC: Download [http://www.gimp.org GIMP]. Follow same directions as above