After determining what change is needed, you can RESIZE the picture by using Image, Resize and selecting the option "Percentage of Original".
Welcome to Alan's Hints 'n TipsMessing with picture file sizes. |
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What to do when a picture is TOO BIG to fit on your screen all at once. For this example I am going to use Paint Shop Pro 5, but other software packages that allow you to 'fiddle' with photos and/or graphic files will have similar functions available. Firstly, we should differentiate between resizing a picture and the viewing size of a picture. RESIZE Resizing a picture alters the actual file size which in turn changes the picture size as it appears on the screen. VIEW SIZE This only changes the way you see the picture on the screen (bigger or smaller) and does not alter the actual file size. VIEWING your picture on Paint Shop Pro. Open Paint Shop Pro (or other software which allows altering of pictures). Go to File, Open and use the directory structure to locate the picture you want to alter. Once the picture has loaded, the header on the picture will show both the name of the picture and the displayed size of the picture in relation to the FULL or actual size of the picture file. This will appear as 1:2 if it is displayed as 1/2 size, 1:1 if it is displayed as its actual size and 2:1 if it is displayed as twice the size. From this you will be able to judge what percentage change you need to make the picture the finished size you require. |
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NOTE: You can change the VIEW size by using the magnifying glass.
Click on the button (in the shape of a magnifying glass) and then click on the picture. Move the magnifying glass over the picture and use the LEFT mouse button to make the picture view bigger, and the RIGHT mouse button to make the picture view smaller. After determining what change is needed, you can RESIZE the picture by using Image, Resize and selecting the option "Percentage of Original". |
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You only need to change one parameter (like width) and the other will change automatically. This is called keeping the 'aspect ratio' the same.
The "Maintain aspect ratio" box should be 'ticked' for this to happen - it is the default setting so you shouldn't need to alter it. Once the change has taken place you may find that the screen view has become smaller than you intended. Use the magnifying glass to bring the size back to 1:1 which should be the size you intended the picture to end up. Don't forget to Save the picture again, use SaveAs to make a new version of it, or just Save to overwrite the original one. NOTE: (1) The size the picture will appear on your screen will vary with the way your screen resolution is set on your computer. On a screen set at 640 x 480 pixels a given picture will appear larger that when it is displayed on a screen set to 800 x 600 pixel resolution. NOTE: (2) You also have the option of saving the picture in different formats. See PICTURE FORMATS - Best for attachments 
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