check the image size

[GUJUm0deL]

Hi all. faq216-5781 tells me how to get the dimensions of an image, but is there a way via JS to get the image size? I'd like to check the image size before uploading the image. If the size is greater then, say, 1024 then throw an alert.

Thanks.

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[kaht]

If you're talking about getting the image size before you even upload it from the server, then no - javascript will not be able to do this. Although I'm not familiar with any process that will do it, it's likely that you can achieve this with some PHP procedure or ASP.Net. You could then use an AJAX call to that server side procedure to get the dimensions without having to reload the page - so in that sense you could use javascript to get the data dynamically. But, honestly it's the PHP or ASP that's doing most of the work.

-kaht

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[GUJUm0deL]

Yeah, that's what I thought. I know how to do this in Coldfusion, but wanted to see if I can achieve this w/o uploading the file. I figured since I can read the width and height of image from that FAQ above, maybe I can also get the image size.

Thanks.

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Just Imagine.

http://www.imajinarts.com