Image Resolution..

[Bubzeebub]

Is it possible to increase the resolution of an image? I have an image whose resolution is too low for letterhead. Is it possible to increase this. Currently the resolution is at 72 dpi

[limbo]

I don't think Internet Explorer will display some higher resolutions. I have seem them diplay as the empty box with an red x for artwork done at higher res. If this is the case, then your best option might be to save them in high quality JPEG format. Or display a the higher res in your link text to let users know.

[benihana]

you can technically chnge the resolution in photoshop or similar, but it wont do you any good. if your trying to make the image bigger, the quality will go down - the Pc cannot 'make up' any more detail.

[deejay]

I take it that you have a web resolution image that you're wanting to use for a paper letterhead?

The good news is, sure, you can increase the resolution of the image in almost any imaging software.

The bad news is it can't put in what's not there, so say doubling the resolution to 144dpi will give you 2x2 black pixels where you previously had 1 black pixel - ie, it's going to look as pixelated as if you were just to magnify the original one. (well, some programs can do some 'smoothing' and such, but the results are never that great in my experience). If it's a simple logo, you can do quite well with a lot of hand editing.. but it's a pain in the bum.

[eggy ricardo]

I believe that if you double the resolution as deejay said, you also could half the dimensions of the image at the same time so that the pixelation doesn't happen, you just end up with a smaller, but higher dpi image.

HTH
Cheers
Richard

[Jon_King]

Bubzeebub,
It depends how large that original 72 DPI file is. If it is pretty good size, like about 4 times the size of the letter head logo size it can work without resampling to a different resolution.

If it's that big you really don't have to do anything but convert it to CMYK (it's probably RGB now) place it in your DTP program, size it and this will output to film or plate just fine.

If you resample to a new resolution, whether you go up or down in resolution, always stay in multiples of the original size, in this case 144 or 288. This will maintain the best clairity possible.