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500pts: dpi/Resolution output for digital printing?

Hi there,

can anyone help?

I have been asked to print some Pictures out using a digital printing shop/service. These JPG's are currnetly 72dpi and anywhere from 800 x 600 to 1600x1000

I believe i need to convert these to 300dpi for output work?? is this correct? Otherwise it would look very bad quality...

If so then the resolution will change for example 800 x 600 will drop to xxx by xxx for example..

The thing i don't understand is, how do i tell what size an image will be i..e in inches or cm on the final output on the piece of paper?

Can anyone shine any light on this for me?

Also i believe i am correct is saying 300dpi for output is best, but maybe i am wrong?

And i have tried in the past by increasing the DPI i.e. from 72 to 300 and using bicubic conversion or similar so that the resolution doesn't change but i always found this to produce really bad results.... of course i may have been doing it wrong??

Any advice or help would really be appreciated

thanks in advance

ian

SOLUTION

lherrou

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ianinspain

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thanks for your comment lherrou...

Do you think 300dpi is sufficient for printing .. or do you think i can drop to 200 ?? that way i can have a bigger image??

Thanks again

ian

lherrou

If we're talking photo paper, you can probably go as low as 233 or even 200, larger images are typically viewed at a greater distance, and therefore the dpi isn't quite as critical. I'd still contact the printer, or send a trial image and see what the results are like.

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maduropa

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