Converting from 72 to 300 dpi

Hi,

I'm trying to convert a 72 dpi document to a 300 dpi one.

I don't actually know how the resolution works and I wonder if there will be a problem... like converting a JPG at a poor quality, let's say 30, to a JPG at 100. It will look the same (bad), despite it will have a bigger size.

Does the resolution work the same? Can I quickly do the changes?

Thank you.

 

I think that as you increase the DPI, the size at which it prints will reduce.

So if you have an A4 sized image at 70dpi and scale it to 2000dpi, it will print out at postage stamp size.

Someone correct me if I'm wrong. This was based on some Photoshop experimentation a few years ago... I could have mistaken my results.

 

Increasing the DPI (size of image) for images do make the quality bad, that's why it's best to save files in higher DPI so you can reduce the size to what you want (this doesn't blur up the image that way).

 

if you want to print it. just import your picture to coreldraw. sometime corel handle jpeg file greater look than its real size. i dont know how to say it english but you can try that.

 

What I do is if I have to convert my file from 72 to 300 that I make a new document with the same size but at 300 resolution and then DRAG the 72 resolution file to 300 resolution and then Re-arrange the stuff.

May be you too try it.

 

That could work sometimes except for illustrations, then they'd have to be resized up to 300 (blurry) then redrawn at 300 DPI. Takes time.

 

there are programs that can do that for you so you can blow it up at a better resolution and it wont look so pixelated

 

it won't do any good. if you resize an original 72dpi image to 300dpi or even more you will have the same outcome unless its vector then thats possibel.

 

it can be done only if you have vactor image. or else restart the same work with 300 DPI