10 Replies Latest reply on May 17, 2007 8:25 AM by kasiem

    300 dpi pictures

    TresTria

      When I open my photographs in Fireworks, they open in 72 dpi. After I modify them, I need to save them at 300 dpi. (I do not have Photoshop which will of course open the photos in 300 dpi if asked.)

      1) Do I lose quality when converting/resampling the photos to 300 dpi in Fireworks and then saving?

      2) I know of two ways of converting to 300 dpi. One, I go to the Modify -> Canvas -> Image size and change it to 300 dpi. Two, I can open a 300 dpi window, paste the present image, and when asked say resample.

      Is one of these methods better than the other?

      3) Is Photoshop better at obtaining and preserving a quality 300 dpi photo. Or can I stay with Fireworks (a program of which I am very fond)?

      Thanks!

        • 1. Re: 300 dpi pictures
          Level 7
          1)As long as you do not resample the image, the only quality loss is
          from resaving the jpeg file. Unless you are planning to print the
          images, changing the dpi has no effect anyway, so you may not need to
          alter it.

          2)Either will do the job, but the first one is faster. Just don't
          resample the image.

          3) Again, the concept of dpi is only relevant when printing. Changing
          dpi does not change the image file quality in any way, so long as the
          file is not resampled. DPI does affect print quality and print
          (reproduction) size.

          HTH
          --
          Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
          Extending Knowledge, Daily
          http://www.communityMX.com/
          CommunityMX - Free Resources:
          http://www.communitymx.com/free.cfm
          ---
          .:Adobe Community Expert for Fireworks:.
          news://forums.macromedia.com/macromedia.fireworks
          news://forums.macromedia.com/macromedia.dreamweaver

          TresTria wrote:
          > When I open my photographs in Fireworks, they open in 72 dpi. After I modify
          > them, I need to save them at 300 dpi. (I do not have Photoshop which will of
          > course open the photos in 300 dpi if asked.)
          >
          > 1) Do I lose quality when converting/resampling the photos to 300 dpi in
          > Fireworks and then saving?
          >
          > 2) I know of two ways of converting to 300 dpi. One, I go to the Modify ->
          > Canvas -> Image size and change it to 300 dpi. Two, I can open a 300 dpi
          > window, paste the present image, and when asked say resample.
          >
          > Is one of these methods better than the other?
          >
          > 3) Is Photoshop better at obtaining and preserving a quality 300 dpi photo. Or
          > can I stay with Fireworks (a program of which I am very fond)?
          >
          > Thanks!
          >
          >
          >
          • 2. Re: 300 dpi pictures
            Level 7
            On Sun, 4 Mar 2007, TresTria wrote

            > When I open my photographs in Fireworks, they open in 72 dpi. After I modify
            >them, I need to save them at 300 dpi. (I do not have Photoshop which will of
            >course open the photos in 300 dpi if asked.)

            The dpi value stored with an image is purely for determining the size at
            which it is to be printed.

            > 1) Do I lose quality when converting/resampling the photos to 300 dpi in
            >Fireworks and then saving?
            >
            The dpi value has nothing to do with resampling or the quality of an
            image.
            http://www.emdpi.com/imagedpi.html

            --
            Richard Mason
            http://www.emdpi.com
            • 3. Re: 300 dpi pictures
              TresTria Level 1
              Richard and Jim,

              I need to clarity what I am doing. I am using Fireworks to remove the background around product images. Then I have a 72 dpi copy for the web. And I need a 300 dpi TIF version for print magazine when our products are being featured.

              Does this change what either of you say? I would appreciate any more help you can offer.


              • 4. Re: 300 dpi pictures
                Level 7
                On Mon, 05 Mar 2007 03:52:24 +0300, TresTria
                <webforumsuser@macromedia.com> wrote:

                > Richard and Jim,
                >
                > I need to clarity what I am doing. I am using Fireworks to remove the
                > background around product images. Then I have a 72 dpi copy for the web.
                > And I
                > need a 300 dpi TIF version for print magazine when our products are being
                > featured.
                >
                > Does this change what either of you say?

                No. When you change image size with "resample" off, you are not changing
                image content. You only change small variable telling your software how
                big your image will be printed. The procedure is non-destructive and you
                may repeat it as many times as you wish, setting any resolution you want,
                without doing any harm to the image. Consequently, there is no difference
                what software you use - Fireworks or Photoshop. Since you are not changing
                image content, they work equally well :-)

                --
                Ilya Razmanov
                http://photoshop.msk.ru - Photoshop plug-in filters
                • 5. Re: 300 dpi pictures
                  Level 7
                  If you have left Resample Image checked, and you change the dpi/ppi it
                  will have a great deal of effect on the image quality because new data
                  is being added to the file.

                  If the option is unchecked, there will be no change, other than
                  potential quality loss generated by resaving the jpeg file.

                  --
                  Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
                  Extending Knowledge, Daily
                  http://www.communityMX.com/
                  CommunityMX - Free Resources:
                  http://www.communitymx.com/free.cfm
                  ---
                  .:Adobe Community Expert for Fireworks:.
                  news://forums.macromedia.com/macromedia.fireworks
                  news://forums.macromedia.com/macromedia.dreamweaver

                  Richard Mason wrote:
                  > On Sun, 4 Mar 2007, TresTria wrote
                  >
                  >> When I open my photographs in Fireworks, they open in 72 dpi. After I
                  >> modify
                  >> them, I need to save them at 300 dpi. (I do not have Photoshop which
                  >> will of
                  >> course open the photos in 300 dpi if asked.)
                  >
                  > The dpi value stored with an image is purely for determining the size at
                  > which it is to be printed.
                  >
                  >> 1) Do I lose quality when converting/resampling the photos to 300 dpi in
                  >> Fireworks and then saving?
                  >>
                  > The dpi value has nothing to do with resampling or the quality of an image.
                  > http://www.emdpi.com/imagedpi.html
                  >
                  • 6. Re: 300 dpi pictures
                    Level 7
                    OK, I am assuming then that you already have high resolution images to
                    work from.

                    Set the ppi to 300 with Resample Image UNCHECKED. Do your close-cutting,
                    save the file.

                    If your web images are going to be smaller (and that's a pretty safe
                    assumption)for the 72ppi image, ensure the Resample option IS CHECKED
                    and make your ppi and pixel dimension changes accordingly. You may want
                    to use Unsharp Mask afterwards to make the image a little more crisp.

                    Ilya gave a great explanation as well.

                    Does this help?

                    --
                    Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
                    Extending Knowledge, Daily
                    http://www.communityMX.com/
                    CommunityMX - Free Resources:
                    http://www.communitymx.com/free.cfm
                    ---
                    .:Adobe Community Expert for Fireworks:.
                    news://forums.macromedia.com/macromedia.fireworks
                    news://forums.macromedia.com/macromedia.dreamweaver

                    TresTria wrote:
                    > Richard and Jim,
                    >
                    > I need to clarity what I am doing. I am using Fireworks to remove the
                    > background around product images. Then I have a 72 dpi copy for the web. And I
                    > need a 300 dpi TIF version for print magazine when our products are being
                    > featured.
                    >
                    > Does this change what either of you say? I would appreciate any more help you
                    > can offer.
                    >
                    >
                    >
                    >
                    • 7. 300 dpi pictures
                      TresTria Level 1
                      Jim, llya, and Richard,

                      Yes, it is all so clear now. Your explanations did the trick. And I am psyched that I can still use Fireworks as my mainstay!

                      Thanks a million!
                      • 8. Re: 300 dpi pictures
                        kasiem
                        I just found this thread when searching for resolution and making images for print. I wanted to confirm I that I could use Fireworks 8 for digital scrapbooking as long as the file is not resampled and I'm working with high resolution images.

                        My other question is regarding the image optimization. When I'm working with my 'layouts' do I need to have it set as a tiff 24 or something else? My printer works with RGB and .jpgs and I want to insure that I get the highest quality prints.

                        thanks again, Kasie
                        • 9. Re: 300 dpi pictures
                          Level 7
                          kasiem wrote:
                          > I just found this thread when searching for resolution and making images for
                          > print. I wanted to confirm I that I could use Fireworks 8 for digital
                          > scrapbooking as long as the file is not resampled and I'm working with high
                          > resolution images.
                          >
                          > My other question is regarding the image optimization. When I'm working with
                          > my 'layouts' do I need to have it set as a tiff 24 or something else? My
                          > printer works with RGB and .jpgs and I want to insure that I get the highest
                          > quality prints.
                          >
                          > thanks again, Kasie
                          >

                          Fireworks is not an ideal application for printing anything, even to
                          your inkjet printer. Usually, designs destined for print will go from
                          Firworks to an app better suited for print output.

                          --
                          Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
                          Extending Knowledge, Daily
                          http://www.communityMX.com/
                          CommunityMX - Free Resources:
                          http://www.communitymx.com/free.cfm
                          ---
                          .:Adobe Community Expert for Fireworks:.
                          news://forums.macromedia.com/macromedia.fireworks
                          news://forums.macromedia.com/macromedia.dreamweaver
                          • 10. 300 dpi pictures
                            kasiem Level 1
                            Okay I have Photoshop elements 2 can I save my image as a .psd and then open it there and then save it as a .jpg? Will it be ready then? Thanks!