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T
Trendssoul
Participant
June 3, 2023
Resuelto

300dpi

  • June 3, 2023
  • 2 respuestas
  • 4181 visualizaciones

I'm sure I'm asking a simple question
how do i do my photoshop work as 300 dpi image jpg
thanks 

Este tema ha sido cerrado para respuestas.
Mejor respuesta de TheDigitalDog

There is zero difference in a document that is 1000x1000 pixels (as an example) at 72 dpi (PPI) or 300 dpi (PPI) or any such value. All are 1000x1000 pixels and the dpi/ppi is simply a metadata tag. 
This very, very old primer on resolution still seems necessary to post, this may help in understanding this tag:
http://digitaldog.net/files/Resolution.pdf

2 respuestas

TheDigitalDog
TheDigitalDogRespuesta
Inspiring
June 3, 2023

There is zero difference in a document that is 1000x1000 pixels (as an example) at 72 dpi (PPI) or 300 dpi (PPI) or any such value. All are 1000x1000 pixels and the dpi/ppi is simply a metadata tag. 
This very, very old primer on resolution still seems necessary to post, this may help in understanding this tag:
http://digitaldog.net/files/Resolution.pdf

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"
    T
    TrendssoulAutor
    Participant
    June 4, 2023

    really interesting and thanks for this information

    Ged_Traynor
    Community Expert
    Ged_TraynorCommunity Expert
    Community Expert
    June 3, 2023

    @Trendssoul unless you're going to print your images, there's no need to change the DPI, if you do want to change it you can do that from the Image > Image Size menu

    https://www.adobe.com/uk/creativecloud/photography/discover/dots-per-inch-dpi-resolution.html

      jane-e
      Community Expert
      jane-eCommunity Expert
      Community Expert
      June 3, 2023

      I hadn't seen that link before, @Ged_Traynor , but I like that it first correctly defines DPI and only later explains the difference between PPI and DPI!

       

      What does DPI stand for?

      DPI stands for Dots per Inch, referring to the number of ink droplets a printer will produce per inch while printing an image. The more dots of ink per inch the picture has, the more detail you will see when printed.

       

      How does DPI differ from PPI?

      PPI (Pixels per Inch) refers to the number of pixels that make up every inch of a digital image. It’s used to describe image resolution on a screen, rather than in print. DPI, meanwhile, refers to number of dots in every inch and is generally used for print purposes.

       

       

      Jane

        D Fosse
        Community Expert
        D FosseCommunity Expert
        Community Expert
        June 8, 2023

        Thx all. The thing you are all replying to has been explained before, or much I was aware of.

        The real point is in my reply before this and after I relearned what effect the ppi field had, and for myself I proved that point.

        I will not think or claim again that ppi is "totally unimportant" re. printing, so that knowledge has at least been refreshed in my mind.

        I do say (and think I have proven to myself) you can get around it by using the output percentage, so in that sense someone could claim ppi is (also) unimportant re. printing (up to a point — I agree it is a semi stretch).

        As the ultimate test I should set 30 ppi instead of 300, then print it at 10%. If there is no difference in quality, I will have again proven the point I was always trying to make.

        IMO, if you can get around it this way, nobody should overstate the importance of this field for printing either. Acknowledge that you can get around it and won't lose your life, or at least when keeping the same size or smaller.

        -

        Don't some people that sell prints use one large psd or photo and simply specify the output percentage (or units) for the required size? At least, they could do that instead of toying with the ppi field, AFAIK — it sure seems easier and it seems to work. Sure, they won't have the ideal sharpening for some of the sizes, etc., but not every print has to be high art.


        I still think you're overcomplicating and overthinking this.

         

        Pixels per inch.

         

        That's all it is, no more, no less. It means exactly what it says.  It explains itself.

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