Aimee Nelson Posted June 30, 2020 Share Posted June 30, 2020 Hey Damien, I have a client who is getting a warning that her digital file is too low res to print a 40"x60" print. I discovered that the file size 72ppi, I read your analogy about 72ppi and 300ppi but the lab she wants to use requires 300dpi. Can I just go into image size and simply change it? When I try to do that it changes the file size from 6mb to 49 mb, is that ok? Link to comment Share on other sites More sharing options...
Damien Symonds Posted June 30, 2020 Share Posted June 30, 2020 The PPI is irrelevant. Only the pixel dimensions (height by width) are relevant. What are they? Link to comment Share on other sites More sharing options...
Aimee Nelson Posted June 30, 2020 Author Share Posted June 30, 2020 4000x6000 Link to comment Share on other sites More sharing options...
Damien Symonds Posted June 30, 2020 Share Posted June 30, 2020 Great! So increase that to 12000x18000 at 300ppi, and send the file to her. Save it as a jpeg at Level 7 quality. Link to comment Share on other sites More sharing options...
Damien Symonds Posted June 30, 2020 Share Posted June 30, 2020 And please don't wait too long to join the Print Sharpening Class. You can't keep flying blind like this. Link to comment Share on other sites More sharing options...
Aimee Nelson Posted June 30, 2020 Author Share Posted June 30, 2020 Thank you so much! I wasn't sure if it was just that simple. She's very hung up on the fact that the file size is only 6MB. If I understand it correctly, that has nothing to do with resolution or quality of the image, am I right? Link to comment Share on other sites More sharing options...
Damien Symonds Posted June 30, 2020 Share Posted June 30, 2020 It is related to resolution and quality of course, but by itself the jpeg file size is not a firm indicator of those things. You need to explain to her that smaller jpeg size is actually an indication of better file quality. https://www.damiensymonds.net/2015/08/about-jpeg-file-size.html Link to comment Share on other sites More sharing options...
Aimee Nelson Posted June 30, 2020 Author Share Posted June 30, 2020 Ok, thank you! Off to read the linked article!! Link to comment Share on other sites More sharing options...
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