High-Resolution logo.gif?

[absoluteblock]

I replaced the Zencart logo (admin/images/logo.gif) with my own. The trouble is, this logo is also used on the invoice and packing slips. When I print these out on a laser printer, the logo looks terrible at 72dpi. To print the logo at 600 dpi requires a logo.gif file that is over 1500 pixels wide, far too big for use on a monitor.

How can I use a high-resolution logo.gif but force it down to the proper sizing to view on a screen? I know how to do this in HTML, but this is obviously more complicated.

Is this a configuration setting? A stylesheet hack? A code hack?

[kobra]

The files used for emails > invoices etc are different than those used for screen/web presentation.....

Look in the /email folder for header.jpg and alter this file

[absoluteblock]

The files used for emails > invoices etc are different than those used for screen/web presentation.....

Look in the /email folder for header.jpg and alter this file

I'm not so sure about this...logo.gif is the Zencart logo. It appears in lots of places, including the page header in the admin console. The same file is used on the packing slips.

[Ryk]

kobra=3506 posts; absoluteblock=9 ...listen to the advice!

[absoluteblock]

kobra=3506 posts; absoluteblock=9 ...listen to the advice!

He gave me advice for something that doesn't apply to my situation. I don't blame Kobra for that, I probably didn't explain the problem very well. admin/images/logo.gif is used in headers, invoices, and packing slips. If you don't believe me, do a search and you'll see for yourself.

How about trying to understand my question instead of casting me off as an idiot?

[stagebrace]

The dpi of a graphic is defined within the graphic when the image is saved. You will need a good graphic program to modify the print dpi settings.

[kobra]

To print the logo at 600 dpi requires a logo.gif file that is over 1500 pixels wide, far too big for use on a monitor.

Not sure that I am understanding what your issue here is.

The dpi is just that - dots per inch - and does not increase the width or height of the image as you suggest.

If I have a 1x1 inch image @ 72 dpi I can also have a 1x1 inch image at 600 dpi with only an increase in the file size Not the image dimensions.

Being this is on the admin side and you have located the admin image dir, these images are not used for the store front (screen) and you could use a high res (large file size) image and then only you suffer the loading lag but this would be the image printed

[absoluteblock]

If I have a 1x1 inch image @ 72 dpi I can also have a 1x1 inch image at 600 dpi with only an increase in the file size Not the image dimensions.

I've tried different dpi resolutions with the same screen dimensions. When printed, 72 dpi looks really bad and 600 dpi looks bad too.

However, if I specify 600 dpi and large screen dimensions (1500 pixels wide or bigger) and then use HTML to force it down to 700 pixels wide, the image looks awesome on a laser printer.


On the packing slip, here is what appears in the browser source file:

 
<img src="images/logo.gif" border="0" alt="logo" title=" logo"></td>

The PHP code to create this looks like the following:

<?php echo zen_image(DIR_WS_IMAGES . HEADER_LOGO_IMAGE, HEADER_ALT_TEXT); ?></td>

The problem is I don't know how to specify image widths in PHP. Is this done in the PHP code above, in a stylesheet, or in a template file?

[kuroi]

Kobra's earlier advice was heading in the right direction. There are three logo files, two of them similarly named. You're not being specific about which you are altering but everything that you've described would fit with you concentrating all your changes to the includes/templates/YOUR_TEMPLATE_NAME?images/logo.gif file.

That file is used for screen display in the catalog section of your store and it's resolution is determined by the values set in the header.php file that you discussed earlier. It don't matter how many pixels you cram into this file, it's still gonna get crushed right down to those dimensions by browsers, so all them extra pixels is just wasted bandwidth for your visitors.

The image used on invoices and other paperwork is held in admin/images/logo.gif file. This is where you can go wild and cram in as many extra pixels as your printer can stand.

Finally, emails use the email/header.jpg file. No real constraints on resolution for this. But no point in adding too many either as you'll only blow the excess off the side of your customers' screens.

The names and formats of any and all of these files can be changed. You just need to root out all the places that they're referenced. There aren't too many, so it's not too difficult.

[absoluteblock]

Kobra's earlier advice was heading in the right direction. There are three logo files, two of them similarly named. You're not being specific about which you are altering but everything that you've described would fit with you concentrating all your changes to the includes/templates/YOUR_TEMPLATE_NAME?images/logo.gif file.

Re-read my original post. I specified that it was the admin/images/logo.gif file.

That file is used for screen display in the catalog section of your store and it's resolution is determined by the values set in the header.php file that you discussed earlier. It don't matter how many pixels you cram into this file, it's still gonna get crushed right down to those dimensions by browsers, so all them extra pixels is just wasted bandwidth for your visitors.

Several posts back, I mentioned that the image dimensions for the admin/images/logo.gif file are ignored. I can change the image's ALT text, but the numbers have no effect on the sizing.

The image used on invoices and other paperwork is held in admin/images/logo.gif file. This is where you can go wild and cram in as many extra pixels as your printer can stand.

This is precisely what I'm trying to do. I just need to know how to force the browser to size it properly on the screen. I don't know how to do it in PHP.