11-21-2017, 05:10 AM
Gimp (and all bitmap editors) work in pixels, not in units like inches. If you specify a size in inches then Gimp does some behind the scenes work to convert to pixels. You need to understand the relation between image size, print size and dpi.
For example:
Image is 500 x 500 pixels.
Print resolution is 300 dpi
Print size is calculated to be 500/300 inches = 1.66 inches
Print size is 5 x 3 inches.
Prnt resolution is 100 dpi
Image size is calculated to be 5*100 x 3*100 = 500 x 300 pixels
You need 300 dpi for a good quality paper print.
So you can calculate the required image size in pixels.
You don't say what the original image sizes are in pixels. Are they good enough?
Scaling alters the image size in pixels. If you scale down pixels are thrown away so loose quality. If you scale up, pixels are created. Some algorithm will calculate what these created pixels are. So you also loose quality.
You need to scale some images to fit a Word template. Why not just let Word do the scaling. Then you don't need Gimp for this job.
For example:
Image is 500 x 500 pixels.
Print resolution is 300 dpi
Print size is calculated to be 500/300 inches = 1.66 inches
Print size is 5 x 3 inches.
Prnt resolution is 100 dpi
Image size is calculated to be 5*100 x 3*100 = 500 x 300 pixels
You need 300 dpi for a good quality paper print.
So you can calculate the required image size in pixels.
You don't say what the original image sizes are in pixels. Are they good enough?
Scaling alters the image size in pixels. If you scale down pixels are thrown away so loose quality. If you scale up, pixels are created. Some algorithm will calculate what these created pixels are. So you also loose quality.
You need to scale some images to fit a Word template. Why not just let Word do the scaling. Then you don't need Gimp for this job.