Alt tags in images - help please...

So I have a bit of a gap in my pitiful knowledge about the way SEO works. I'm aware that it's A-GOOD-IDEA to alt tag images on the web, but really don't know how to go about doing it.
Ideally, I'd like a bit of freeware (along the lines of Faststone) where I could add alt tags in an idiot-proof fashion - I know next to nothing about coding / html.... Does such a thing exist? If not, is there an easyish way to do it myself?
I have spent a fair while Googling these questions but can only find articles about why they're important, rather than how to actually go about it. I already use Lightroom and Photoshop if that helps any?
Thanks in advance for any pointers!
Ideally, I'd like a bit of freeware (along the lines of Faststone) where I could add alt tags in an idiot-proof fashion - I know next to nothing about coding / html.... Does such a thing exist? If not, is there an easyish way to do it myself?
I have spent a fair while Googling these questions but can only find articles about why they're important, rather than how to actually go about it. I already use Lightroom and Photoshop if that helps any?
Thanks in advance for any pointers!
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Hi.
The img src="" is the part of the code which tells which image is to be used, and yes you need to use the quote marks. I have just had a look at your site and instead of using img src="" it just use's src="".
This link should help you understand alt tags.
I see you use Photium, is there no where within the set up to add an alt tag description without changing the code manually?
I hope that helps
Richard.
The img src="" is the part of the code which tells which image is to be used, and yes you need to use the quote marks. I have just had a look at your site and instead of using img src="" it just use's src="".
This link should help you understand alt tags.
I see you use Photium, is there no where within the set up to add an alt tag description without changing the code manually?
I hope that helps
Richard.

Thanks for all the info. Sadly, most of the photos on my site are in password protected galleries (weddings), and by necessity are titled only with numbers. The public galleries can all be re-titled though. Will sit and do it one cold evening whilst half-watching telly!
Off to follow link and check that PM, thanks!
Off to follow link and check that PM, thanks!