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11th Oct 2014, 7:43 pm | #1 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,194
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Picture file size reduction
Hi Gents, I believe there was a posting at on time on reducing the size of pictures/ files so they could be attached to posts. I've looked in FAQ's to no avail; can someone point me in the right direction please?
Thanks, Ed |
11th Oct 2014, 8:03 pm | #2 |
Administrator
Join Date: Dec 2002
Location: Cardiff
Posts: 9,071
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Re: Picture file size reduction
The forum software will resize them for you as long as they aren't excessively big. Images from a modern digital camera or smartphone may be too big for automatic resizing though.
Any photo editing software can be used to resize images. Irfanview, Paint.net and Gimp are all free (the first two are for Windows only). |
11th Oct 2014, 8:19 pm | #3 |
Heptode
Join Date: Mar 2008
Location: Camberley, Surrey, UK.
Posts: 805
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Re: Picture file size reduction
There are a number of programs that will add themselves to the windows options box that opens when you right click a file. Very convenient. the one for XP was nicer that the one for Win7.
Typically called "imageresizer" google it but be sure you download it from a reputable site! should be free. |
11th Oct 2014, 8:41 pm | #4 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,937
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Re: Picture file size reduction
Another solution is to reduce the resolution on the digital camera when taking photos. 1 megapixel will be fine for internet use.
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11th Oct 2014, 10:22 pm | #5 |
Octode
Join Date: Jan 2014
Location: Oban, Scotland, UK.
Posts: 1,129
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Re: Picture file size reduction
For jpg images you often get the opportunity to save them using a different compression ratio (I know Paintshop Pro has this facility, I'd be surprised to find others didn't).
Just dropping the compression from 100% (no compression) to 75% reduces the filesize considerably and, providing the image doesn't need any special hi-definition requirements, you won't be able to tell the difference. Here's two views from my back garden, one at full resolution, one compressed 50% (69k and 46k filesizes respectively) |
12th Oct 2014, 9:12 am | #6 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,194
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Re: Picture file size reduction
Thanks for that gents.
Ed |
12th Oct 2014, 11:45 am | #7 |
Heptode
Join Date: Apr 2014
Location: Wigton, Cumbria, UK.
Posts: 728
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Re: Picture file size reduction
In fact the Paint program that comes as part of all Windows operating systems can be used to crop and to resize photos.
1. Open your photo in Paint 2. Use the 'Zoom Out' option under View so you can see the whole of your picture on the screen. 3. Use the 'Select' option under Home to highlight the part of the photo you want to post and then click 'Crop'. This will keep the portion of the photo you selected and delete the rest. 4. Select 'Resize' and in the pop-up box select 'Pixels'. Ensure the 'Maintain aspect ratio' box is ticked. (I generally find that selecting a horizontal size of 800 pixels will give you a file size of about 200Kb for a .jpg). 5. Use the 'Save as' option to save your resized image as a .jpg. Hope this helps Nick |
12th Oct 2014, 11:53 am | #8 |
Pentode
Join Date: May 2014
Location: Amsterdam, Netherlands
Posts: 202
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Re: Picture file size reduction
What is actually the maximum image size before the forum S/W starts to resize? Knowing this speeds up upload, albeit marginally.
Tjerk, 9ZZ |
12th Oct 2014, 1:59 pm | #9 |
Administrator
Join Date: Dec 2002
Location: Cardiff
Posts: 9,071
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Re: Picture file size reduction
When you choose to add an attachment the maximum dimensions and file sizes are shown. If it exceeds any of those it will be resized, if not it won't.
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12th Oct 2014, 3:00 pm | #10 |
Heptode
Join Date: Feb 2013
Location: Yarm, North Yorkshire, UK.
Posts: 535
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Re: Picture file size reduction
PIXresizer - I have used it for many years in its various versions - simple and straightforward. You can find it at www.bluefive.pair.com
Colin |