DPI - PPI (Project for WOrk)

[magnumst4r]

Good Evening, I'm not new to Photoshop but new to printing as well as DPI.

AS of yesterday I found out about DPI, i had to have this project finished in 300DPI for the printer. I have never used DPI settings and didn't know what it was until I was told I needed to change all 4 pages of the invitation I created for work to 300DPI from my original 72dpi.

I created the files all 9x6 inches - I changed the DPI on the already finished documents and the image BLEW UP larger WAY larger then 9x6, but he said this was correct.

2 Questions
Was the File Still 9x6 Inches, and if you change the DPI after the document was created in a lower DPI will the document still be crisp as can be (no including any images that were NOT created with photoshop such as images from camera, which I re-added so they were fine.)

Im LOST HELP!

 

[mozartdminor]

It is normal for it to look like your picture blew up, your monitor is displaying pixels, and by increasing dpi you increased the number of pixels in your image, therefore with more pixels it'll take up more space on your screen. It is still 9x6 though (you can prove this by putting your rulers on if you're in cs3).

The bad news is that by changing the DPI after you started, you almost certainly lost crispness. The problem is I don't know how much of that loss will show in printed form as I normally just stay digital.

Future reference though, the general dpi for images on the internet is 72, for printed images it's 300. It can't hurt to ask the client though.