Just FYI, standard letter size is 8.5x11 inches, not 8.5x10. I assume that you have the original file of the graphic to work from.
You will need a dedicated graphics program to do this. What you are trying to do is create a custom-sized graphic and most of the software utilities that come with a printer will only size to preset sizes. I am not acquainted with the two programs you referenced, but good, free, bitmap editor is Gimp that will do it for you. Or, if you have access to a good Vector-line ("draw") program such as Adobe Illustrator or CorelDraw, you can import the graphic and simply size it by selecting it as a whole and dragging the borders where you want them. Remember that everything depends on the size of the stock you are using; sometimes the graphic was created in a certain aspect ratio, and it simply will not fit the frame that you want without distorting horizontally or vertically, or both. You won't know until you try. You can do this in Gimp also, but it is a bit more complicated; you must enter the sizing tool and manually enter the new size in inches or pixels. Not difficult either way.
Thanks a lot for your help!
I've used Gimp over the years, and was recommended Inkscape https://inkscape.org/en/ by someone in the industry since it's a Vector based graphic design software online for free (rather than paying hundreds at once or $30 a month for Adobe's solutions).
Basically, I'm not worried about graphics or images NEARLY as much as I am about output real-world print size dimensions of a graphic/flyer I created. For example, I use https://www.canva.com/ which is amazing to create my company promo materials (I attached an example in my original post above), and it allows you to create custom dimensions to start from scratch, or select a standard size (ex: 5x7, 4x6, business cards, Facebook banner, etc. etc. in hundreds of pre-determined sizes), but when I save that file in a specific size/aspect-ratio as either a PDF or a PNG format, I want to make SURE it's printing in that exact size.
I think all I have to do is create the file with pre-set dimensions, and then in my print dialog box, select the box that outputs the file in the true-to-life measurements. But it has not worked like that. Technology! Haha... it's 2017 and we can't just say "Hey printer, I want this to be printed in _______ size exactly."
Edited by FLEXyourFAITH, 06 April 2017 - 06:35 AM.