How to: Resize an image to 800 pixels at 72dpi using Photoshop

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1 How to: Resize an image to 800 pixels at 72dpi using Photoshop To quote from the rules: Size: Images should be 800 pixels along their longest side. This is a MINIMUM size. Entries less than 800 pixels along their longest side are liable to be disqualified since they may not be able to be reviewed by judges at a reasonable size. Entries that are larger than 800 pixels along their longest side may still be entered but the system will resize them - this means that uploading the images will take longer than normal. Your file may get corrupted. If the files get corrupted in uploading, they may 'clog up' the system and are liable to be deleted by the system administrators. If this happens, they will have 'disappeared' from your 'My Images' page. For best viewing on the site, images should be 72 dpi resolution. A photograph that is 800 pixels along its longest side and 72 dpi will be well within the tolerance of the system. The following steps will help you achieve this request for a screen resolution file using the popular retouching program Photoshop Don t forget that we will be saving a separate copy of the image so that the judges can quickly look at the image and make a decision as to whether they wish to see the full sized image. It s therefore very important that you don t overwrite the original file that came from your camera otherwise you will loose this larger file and will not be able to make good quality prints or submit a good quality file to the competition when requested 1 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.

2 1. Open the picture you wish to submit 2. If your image has more than one layer choose from the LAYER menu Flatten Image (Don t worry if Flatten Image is greyed out it just means there are no layers, this is what we want!) 2 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.

3 3. If your image is originally a split tone/duo tone, greyscale or any other type of file than RGB you will need to convert it to RGB first, select IMAGE:Mode:RGB Color 4. If your image is in 16bits change it to 8 Bits by using IMAGE:Mode:8 Bits/Channel 3 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.

4 5. From the EDIT menu select Convert to Profile then: (If the Destination Space Profile already begins with srgb then just cancel the dialogue nothing to do here) a) If the Destination Space Profile does not begin with srgb then select srgb in the Destination Space dropdown menu b) Engine: Adobe (ACE) c) Intent: Relative Colormetric d) Ensure Use Black Point Compensation is ticked e) Ensure Use Dither is ticked Click OK when done 6. Select IMAGE SIZE from the IMAGE menu: 4 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.

5 When the Image Size dialogue appears do the following: Work from the bottom of the dialogue upwards doing the following in this exact order (or else it wont work!): a) Ensure Resample Image is ticked and select Bicubic Sharper from the dropdown list b) Ensure Constrain Proportions is ticked c) Select Pixels/Inch from the resolution dropdown and enter 72 into the Resolution box d) Select pixels from the Pixel Dimensions dropdowns (top of dialogue) e) Type 800 into the box containing the largest original figure (overwrite the original number). f) Click OK button to finish and resize the image 5 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.

6 7. Choose: FILE:SAVE AS from the Photoshop menu a) In the Save As dialogue box choose a location for the file the desktop is a good place to save it. It s important that you do not overwrite your original file when you do this A good tip is to add some text to the beginning of the file name such as preview_ so that: Original filename: garden.jpg becomes: preview_garden.jpg b) Select JPEG from the Format dropdown box c) Ensure the ICC Profile box is ticked d) Ensure the Use Lower Case Extension is ticked f) Click SAVE If you get a dialogue box asking to overwrite an existing file click cancel and choose another filename (step 7 onwards). It s very important that you do not overwrite your original camera or retouched file. 6 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.

7 7. JPEG Options dialogue Set Quality to 8 then click OK to do the save. You can now close the image (FILE:CLOSE) That s it, all done you should now have a high quality 800 pixel/72dpi file saved in your desired location and ready for uploading to the competition website. 7 Document Stephen Johnson/Copyrightimage Ltd / GALPA ltd.