<div dir="ltr">Yes, I understand that ". . . a digital image doesn't have an intrinsic size in inches, only a size in pixels."<br><br>And I also understand that "Resolution plays a role when printing . . . ."<br><br>But that is my point.<br><br>Suppose you are processing (for example) a low res JPG image out of a smart phone,  And you have a request for a print (4 x 6 or 5 x 7).<br><br>To provide a satisfactory print, it may make sense to increase the resolution of this image.  Yes, I understand that this is not usually a good idea and can potentially result in a number of issues with the final product.<br><br>Nevertheless, it is worth a try, if for no other reason that to make the requestor (customer/client) happy.<br><br>Now 300 ppi doesn't make sense in this case, but 120 or 150 might.<br><br>Unfortunately, if I correctly understand the messages in this thread, there is no way in digiKam to make this change independent of changing the dimensions (resizing) of the image.<br><br>BTW, FWIW, here a number of links to articles that can help both amateurs and professionals obtain a better understanding of this topic:<br><br><div style="margin-left:40px">Rediscover - Understanding Resolution - Luminous Landscape<br><a href="https://luminous-landscape.com/rediscover-understanding-resolution/">https://luminous-landscape.com/rediscover-understanding-resolution/</a><br><br>Res-Demyst - Luminous Landscape<br><a href="https://luminous-landscape.com/res-demyst/">https://luminous-landscape.com/res-demyst/</a><br><br>The Truth About Resolution - CreativePro.com<br><a href="https://creativepro.com/the-truth-about-resolution/">https://creativepro.com/the-truth-about-resolution/</a><br><br>Understanding Resolution - Luminous Landscape<br><a href="https://luminous-landscape.com/understanding-resolution/">https://luminous-landscape.com/understanding-resolution/</a><br><br>ShortCourses-Pixels per Inch<br><a href="http://www.shortcourses.com/sensors/sensors1-15.html">http://www.shortcourses.com/sensors/sensors1-15.html</a><br><br>Peachpit: Creating and Managing Images > Changing Image Size and Resolution<br><a href="http://www.peachpit.com/articles/article.aspx?p=705532&seqNum=3&rl=1">http://www.peachpit.com/articles/article.aspx?p=705532&seqNum=3&rl=1</a></div></div>