I want to suprise my Mom by ordering some printed envelopes made of images of her cooking for my brother and I. As I attempt to order them, their program tells me that some images are unfit because of low resolution. Can anyone possibly explain how that can be done? I would very much appreciate any broadening of my understanding for this until Tuesday.

To my knowledge you cannot make a low resolution photo higher.  If you have the original photos perhaps they were taken at a higher resolution.  The low resolution to them means they cannot produce a decent image for what you / they are trying to do.

The only thing that matters with an image is the number of pixels it contains; “resolution” only becomes a meaningful concept when the image is output to some display medium, such as screen or paper, where it tells the output device how many pixels there are to some display device measurement. You can change the resolution of an image without removing or adding pixels using graphics software such as Photoshop (very pricey). Or you can download some freeware like Gimp, which can do it for free.  A bit complex to use, though, if you aren’t familiar with graphics software. You could probably Google on how to do it. Or maybe there is a website that can do it for you…let me check.

Ok, this site:

http://image.online-convert.com/convert-to-jpg

It allows you to specify a “DPI”, which means Dots per Inch, which is the same as resolution.  I increased the resolution of a .jpg file I had to 300 DPI, which should be good enough to print.

Ok, this site:

http://image.online-convert.com/convert-to-jpg

It allows you to specify a “DPI”, which means Dots per Inch, which is the same as resolution.  I increased the resolution of a .jpg file I had to 300 DPI, which should be good enough to print.

Thank you for taking the time to find this Charles, it worked, I was able to set it at 300 DPI, yay!

Have a good week, and thanks again!