How do I enhance the quality of a reduced jpeg (pixels are showing)?

Question

I have a logo jpeg I need to reduce to a size that displays properly on a business card, letterhead, etc. I think I did this with another one of my Companies 4 or 5 years ago, but have not used Photoshop CS2 since and cannot seem to find guidance in the Help.
The original jpeg is 1.764" x 4.403" (127 pixels x 317 pixels), 72 ppi. I need the size to be 0.300" x 0.750". The logo clearly shows pixels when I resize. I've tried increasing resolution as well as other atttributes.
What am I missing? What should/can I do?
Thanks.

Answer 1

You can uncheck the Resample box and then change the size print size to the smaller value.  This will proportionally increase the PPI, but does not change the image because the pixel dimensons are the same as before.  It still won't be great, but will be far better than leaving rthe PPI value at 72 while reducing the image pixel dimensions.  Keep in mind that for printing (which is the only place where PPI really matters), the pixels per inch density should ideally be 300 or greater.  If using a print service, ask them what PPI printer resolution works best.  The printer's RIP (raster image processor) has to convert the RGB pixel data to CMYK separations at its native density.  If the image that you are working with is a photo, the final output sharpening should be done in Photoshop after setting the print size.  This is not applicable to scalable vector graphics.
Paula