Comments on: Get DPI value of an image using PHP

By: Rosario Rojas

Rosario Rojas — Fri, 27 Nov 2009 08:22:24 +0000

This is a very good code. Saved me a lot of work to modify more than 1,000 JPG images.

Thank you very much!!!.

By: Sindre

Sindre — Thu, 29 Oct 2009 22:56:27 +0000

For some reason i get a DPI value: 17490
Isnt this to high? Its just a png-logo..

By: MS

MS — Mon, 19 Oct 2009 14:21:50 +0000

This doesn’t work at all, and I like the author writing:
print_r(get_dpi2(’filename.jpg’));

when he calls the function “get_dpi” and then call “get_dpi2″ for some reason that I can’t seem to understand.

Lovely function, beside the non-working part.

By: john

john — Wed, 23 Jul 2008 08:40:59 +0000

Man, this is a great function that works really well. However, it seems it can’t read DPI information of a JPEG created on a MAC. I guess encoding methods differ. Do you know where the DPI information is located on a MAC-created JPEG?

By: PHP ile resim dosyas?n?n DPI bilgisini alal?m - Günlük Haftal?k Ayl?k

PHP ile resim dosyas?n?n DPI bilgisini alal?m - Günlük Haftal?k Ayl?k — Thu, 15 May 2008 20:34:17 +0000

[...] Kaynak: Get DPI value of an image using PHP [...]

By: moe

moe — Thu, 10 Apr 2008 09:32:59 +0000

hi,
i know this is way offfff topic, but you think you know how to get a Snap shot of a website in different sizes? if so, could you post it on as a blog or maybe give some ideas and point us to few tutorials that maybe helpful?

thanks a bunch!

By: tom

tom — Tue, 08 Apr 2008 11:12:05 +0000

hi,
this is an excellent little script that i found from the forum you mention! for some reason though i am getting the values 100, 100 returned from both a 72dpi file and a 300 dpi file…?
Would you know why this is at all? I have resized both images in photoshop and saved out at the DPI’s mentioned.

Any help would be greatly appreciated!

Thanks,

Tom