export to photoshop

[Bokje]

Hello,
I have the following question.
I am using TV Paint to make illustrations. When i export them to Photoshop, the DPI is 72.
As I want to print the illustration in high quality. I can change the DPI to 300 in Photoshop, but is that the right thing to do if I want high quality prints?
Thanks a lot for your help, anyone.

Harriet

[Peter Wassink]

On the guess that you are dutch, i'll advice you to read this.
in english on wikipedia
it explains all there is to know about dpi (pixels per inch)

Digital images do not really have a dpi.
That photoshop makes it 72 is because computerscreens used to depict digital images at 72 DPI but it says nothing about how big the image is when you print it.

Digital images, like the ones in TVP and photoshop, only have a dimension in pixels.
To translate these dimensions to the "real world" (=paper) you need a measure of how many pixels fit into a square cm or inch.
And this is what the dpi information in photoshop does, it is added to make it possible to control the size of the digital image when you print it.

pixel dimensions for different DPI values when printing onto an A4 size paper:
72 dpi = 595 X 842 pixels
300 dpi = 2480 X 3508 pixels (210mm X 297mm @ 300 dpi)
600 dpi = 4960 X 7016 pixels

So if you want an a4 illustration at 300 dpi you'll have to make your TVP project about 2500X3500.
if you export this project to photoshop and there change the DPI from the 72 into 300 you will see that the image dimensions are a4.

[Elodie]

Great explanation Peter.

DPI makes only sense for printers because DPI defines "how many dots (pixels) you want to create one inch, in order to have a poster printed in good quality".

Animations are not planed to be printed, so use DPIs in TVP Animation doesn't make any sense.

[Bokje]

Veel Dank, Merci Beaucoup, Thanks a lot,
Harriet