img + TIFF

stan01 · #1 (**permalink**) Oct 19th, 2007, 18:38

I am having a problem openning a TIFF file.

please let me know what I am missing:

<htmlxmlns="http://www.w3.org/1999/xhtml">
<head><title>Untitled Page</title>
</head>
<body>
<formid="form1"runat="server">
<imgsrc="a.tif"/>
</form></body>
</html>

Thank you

karinne · #2 (**permalink**) Oct 19th, 2007, 18:40

First of all ... you need spaces between elements and attributes

HTML: Select all

<formid="form1"runat="server">
<imgsrc="a.tif"/>

Should be

HTML: Select all

<form id="form1" runat="server">
<img src="a.tif"/>

And secondly, it's best to use GIF, JPG or PNG formats for the web

stan01 · #3 (**permalink**) Oct 19th, 2007, 18:43

Still doest open the file..

Could you please explain why TIFF format is bad for web?
Thanks

Lchad · #4 (**permalink**) Oct 19th, 2007, 18:51

A .tiff file is a larger file size versus jpeg, gif or png. .tiff's take longer to load or won't load at all on dial up.

karinne · #5 (**permalink**) Oct 19th, 2007, 18:55

From Image file formats wiki

TIFF

Quote:

The TIFF image format is not widely supported by web browsers

stan01 · #6 (**permalink**) Oct 19th, 2007, 20:22

Thank you all for your help.

Could you help me find a document that shows that Tiff is bad to use!

TIFF image format is not widely supported by web browsers
and
png. .tiff's take longer to load or won't load at all on

I just need to prove it with ligal documents.

Thank u very much!

alexgeek · #7 (**permalink**) Oct 19th, 2007, 20:25

Why not use JPEGs or GIFs?
JPEGs are average quality and okay load time
GIFs are below average quality and load instantaneously.

stan01 · #8 (**permalink**) Oct 19th, 2007, 20:30

My company is using ~ 20,000 + Tiff files.

and I have explained them , that TIFF is not good to use.

so they asked me to prove it with ligal links.. so we could convert Tiff into JPEGs or GIFs.

Thank you

alexgeek · #9 (**permalink**) Oct 19th, 2007, 20:33

Do you have photoshop?
You could probably do a batch job which would convert them all.

stan01 · #10 (**permalink**) Oct 19th, 2007, 21:06

I didn't think about converting yet..

First I need to prove that it is bad to use TIFF format.

Could you help me find a link that shows that:

- TIFF image format is not widely supported by web browsers
and
- that tiff's format would take longer to load or won't load at all on

I just need to prove it with ligal documents.

Thank you very much...

AdRock · #11 (**permalink**) Oct 20th, 2007, 11:50

Here is an example that explains the difference between different image types and it says that .tiff images are quite large.

http://www.bleepingcomputer.com/tuto...utorial36.html

Imagine trying to download a 5Mb image through your web browser on a dial-up connection. It would take 12.5 minutes just to download the image. Do you think people are going to wait that long to download that image before they can see it?

I have never used them but would pngs not do thgw job as it uses lossless compression?

MikeHopley · #12 (**permalink**) Oct 20th, 2007, 12:04

Just use JPG or PNG (and get pngCrush). GIF is pointless unless you want it to animate.

Basically: JPG for photos (great lossy compression) and PNG for high-quality graphics and alpha transparency (mind IE6!).

moojoo · #13 (**permalink**) Oct 22nd, 2007, 19:01

TIFF files are great for desktop publishing, not so great for internet use. Now if you use Quark Tiffs are the way to be.

AdRock · #14 (**permalink**) Oct 22nd, 2007, 21:30

Quote:

Originally Posted by MikeHopley

Just use JPG or PNG (and get pngCrush). GIF is pointless unless you want it to animate.

Basically: JPG for photos (great lossy compression) and PNG for high-quality graphics and alpha transparency (mind IE6!).

GIFs are ok if you only need limited colours

MikeHopley · #15 (**permalink**) Oct 22nd, 2007, 21:38

Quote:

Originally Posted by AdRock

GIFs are ok if you only need limited colours

Yes, but PNGs will do just as well.

alexgeek · #16 (**permalink**) Oct 22nd, 2007, 21:48

I don't get what you mean there Mike.
GIFs are low quality and low file size whereas pngs are high quality and fairly high file size.

AdRock · #17 (**permalink**) Oct 22nd, 2007, 22:00

Quote:

Originally Posted by alexgeek

I don't get what you mean there Mike.
GIFs are low quality and low file size whereas pngs are high quality and fairly high file size.

That's what I thought. That's why i said if you are using limited colors, to use a gif

MikeHopley · #18 (**permalink**) Oct 23rd, 2007, 00:50

Quote:

Originally Posted by alexgeek

I don't get what you mean there Mike.
GIFs are low quality and low file size whereas pngs are high quality and fairly high file size.

PNGs work much the same as GIFs if you reduce the palette. It's hardly fair to compare full-colour PNGs with 256-colour GIFs.

And for those of you who would like to use high-quality PNGs, but are put off by Photoshop's monstrously inefficient algorithms, try PNGcrush for (often substantial) lossless compression.

PNGs are great for everything except compressed photos, or other situations where you need lossy compression without sacrificing colours too much (that's what JPG is good at).

PNGs compared with GIFs

Quote:

Originally Posted by Wikipedia

In practice, well optimized and compressed PNG files are usually much smaller than GIF files (10 % to 50 % savings) for filesizes above about 100 bytes.

moojoo · #19 (**permalink**) Oct 23rd, 2007, 21:11

Andf IE 6 doesn't support PNG without headache and haxery. But great transparencies on them! mmm they look good.

alexgeek · #20 (**permalink**) Oct 23rd, 2007, 21:32

I might use that pngcrush app.
My header for my blog is rather large in file size.

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img + TIFF