Who is a good judge of size?

[Baitball Blogger]

How big can I enlarge a tiff file that is 1800px wide and 1600px high at 600 DPI?

[valerief]

1. What does your app's documentation say it can do? nt

[Baitball Blogger]

2. I'm getting a photoshop made by a professional service.

I had them Frankenstein four photos to come up with a formal portrait of my parents and I want to enlarge the result into an 8 x 10.

[valerief]

3. Sorry, I can't help. I thought you had an app on your computer and could look up

limits in the help file. When I play around with images, I generally don't go over 3000 pixels.

Good luck!

[evlbstrd]

4. You can double the dimensions

and still have a resolution of 300 dpi, just fine for a print.

Currently you have 3" x 2.667". 200% enlargement will take you to 6 x 5.33 @ 300 dpi.
Enlarging it further will reduce the resolution and the quality of your print.

[Baitball Blogger]

5. So a 5 x7 is probably the best I can do.

Are you saying that I should have had the photos scanned at 300 dpi instead of 600 for a better resolution?

[evlbstrd]

6. Have them scanned to your enlarged size

You'll actually see little difference between 300 and 600 dpi if you do that.

[Baitball Blogger]

7. Okay. Thanks.