Image to 5x7 at 72ppi, for web viewing, I know only have 504x360 Size, I have 3072x2048 pixels or 6.3 million pixels.

If I open an image capture by my 10D and look under Image, Image The ppi setting determines the print size (see Adobe's explanation of document size below). It uses the term ppi in connection with image sizes. I'm not sure where you would find Photoshop referring to the 'dpi' of an image. Therefore itĭoesn't really matter what DPI you save a JPG at (as long asĭPI as shown in Photoshop is just a number that tells PS how to If you use a print program like QImage Pro, you can override theĮmbedded DPI number and set it to whatever you want. Printer reads from the JPG to determine what size to print it. When printing the JPG, the DPI number is only a number that the Of 72 or 96 or 300, but this does not affect the actual pixel count When using Photoshop, you can save a file as a JPG and it has a DPI So, you are right that DPI can be overriden. The PPI is just the number of pixels at a given document size.

I think also that the document size determines the final print size, NOT the DPI. If I crop the image to 5x7 at 72ppi, for web viewing, I know only have 504x360 pixels or 181,000 pixels. If I open an image capture by my 10D and look under Image, Image Size, I have 3072x2048 pixels or 6.3 million pixels. PPI is what you refer to when you crop for printing. DPI as shown in Photoshop is just a number that tells PS how to display the image on the screen.

How to find dpi of jpg