new image dialog not userfriendly

[zuse]

Hi,

if i want to make a new picture of defined size, i change the print size to xy cm. Then i raise the resolution to a higher px/cm ratio. After that, the defined size in cm is lost/changed.

Perhaps pdn should remember which field (px or size) has changed last and lock this value if changing px/cm ratio.

Thanks a lot

Holger

[Rick Brewster]

Why was this posted in Troubleshooting?

Moved to General Discussion

[Ego Eram Reputo]

Image size and the DPI are intrinsically linked. You can't change one without affecting the other.

This should help explain: DPI and you

[Sarkut]

Just remember to set the resolution before the print size.

[zuse]

> Why was this posted in Troubleshooting?

Thanks for the moving the thread. I thought this was the correct place, since my girlfriend had a trouble with ugly fonts after printing, due to too low resolution. 8-)

> Just remember to set the resolution before the print size.

I titled the post "not userfriendly" with a reason.

The problem to solve is: I want to make an image to look nice when printed at a photolab on photopaper with 10x15cm². Homemade greeting card for example. There the main parameter are the size on paper and the dpi value. I do not care how many pixel this will be.

So it would be nicer if it would make no different which of the two options (size on paper and dpi) i enter first. I did not said, that PDN do it wrong, but how it could be improved for unexperienced users.

> Image size and the DPI are intrinsically linked

I know that pixel count and printed size is linked through DPI, but pixel count is sometimes really nonrelevant.

[Rick Brewster]

There the main parameter are the size on paper and the dpi value. I do not care how many pixel this will be.

The size on paper is calculated from the pixel size and DPI. Not the other way around.

Print Width = Pixel Width * DPI

All you need to do is adjust DPI (resolution) until the print size matches what you want.

[Ego Eram Reputo]

....pixel count is sometimes really nonrelevant.

Very relevant, as Rick explained above. Trying to ignore one half of the equation as 'nonrelevant' is not going to make it go away.

[zuse]

The size on paper is calculated from the pixel size and DPI. Not the other way around.

Print Width = Pixel Width * DPI

All you need to do is adjust DPI (resolution) until the print size matches what you want.

Do i write in chinese...? :-)

The equation is converted valid, too:

Pixel Width = Print Width / DPI

Very relevant, as Rick explained above.

Perhaps not nonrelevant for the programm, but for the user to solve the problem.

Nonrelevant in the term of: I do not care which pixel size the picture will get. But i want a 10cmx15cm print with 300 dpi, so PDN should calculate the pixel size regardless which of my two (dpi, print width) i enter first.

I hope this is now clear. Thanks :-)

[Rick Brewster]

If you're going to continue being cranky and argumentative then there's no reason for us to try and talk you down. You've got the facts, now go use them in a productive manner that doesn't waste our time.

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