01-03-2019, 06:32 PM
The printer is correct. You can print any image any size and the relationship between printed size and ppi holds good. A guess; they let the printer software do the scaling.
Example: This image with transparency is about 2700 x 2500 pix
I can print it about 8.5" x 8.5" @ 300 ppi which is photo quality. https://i.imgur.com/Qdx6OfW.jpg That size good enough for a T-shirt.
or without leaving Gimp
I can print it on a smaller bit of paper size 3" x 3" @ 860 ppi https://i.imgur.com/X3aOz1w.jpg Good for a small Sticker.
Will I get any better quality at 860 ppi? No, I just get a smaller image at whatever quality setting the printer uses.
Do whatever you are comfortable with. Some points to consider.
Your camera image 5520x4144 pix might be 10 MB as a jpeg but as an edited png with transparency, (as required for Stickers) about 130MB - What size at 7632x6480 pix??? - Is there any advantage in scaling up, probably not, up to you.
Example: This image with transparency is about 2700 x 2500 pix
I can print it about 8.5" x 8.5" @ 300 ppi which is photo quality. https://i.imgur.com/Qdx6OfW.jpg That size good enough for a T-shirt.
or without leaving Gimp
I can print it on a smaller bit of paper size 3" x 3" @ 860 ppi https://i.imgur.com/X3aOz1w.jpg Good for a small Sticker.
Will I get any better quality at 860 ppi? No, I just get a smaller image at whatever quality setting the printer uses.
Do whatever you are comfortable with. Some points to consider.
Quote:I'd like to work with the 7632x6480 file size, so I can sell all products, and make only one file
Your camera image 5520x4144 pix might be 10 MB as a jpeg but as an edited png with transparency, (as required for Stickers) about 130MB - What size at 7632x6480 pix??? - Is there any advantage in scaling up, probably not, up to you.