When working in Book mode I get exclamation mark on some pictures (those I have scanned and scanned at 300 dpi or some sent to me on email). The pop up says: This photo may not print well at this size. It will print at 161 ppi, and the minimum recommended resolution is 200 ppi. Adjusting the photo zoom will change the photo's printed ppi."
The photo zoom does not help. Is there a way somewhere else that will change that information. I also us Photoshop Elements, Photoshop CC, and OnOne Photo Suite. I am on a Macbook pro with Yosemite 10.10.5.
Thanks, Tina Andrews
This is a "Pixel Dimension" issue.
To print an 8x10inch book page at 200ppi you need the image to be a minimum 1600x2000 pixels in dimensions. (8x200 10x200)
If the image is smaller that this (eg. 1280 x 1600 pixels) then you will get the warning (160ppi)
And severe cropping of the original image will reduce its pixel dimensions.
Increasing 'Zoom' has the same effect as cropping- it shows less of the image pixels on the page.
The scanning ppi is basically irrelevant. (eg a 35mm slide scanned at 300ppi would be about 300 x 400 PIXELS in dimensions. Useless at 8x10inches!)
A book page printed at 160ppi may be acceptable when viewed, depending on the detailed content of the image.
View the image full screen as you want it printed and make a decision if there is enough detail visible.