7 Replies Latest reply on Jul 28, 2008 7:16 AM by Juno41

    Animated GIFs are ridiculously large - why?

    Quircus
      Hi all,

      I cannot figure out why the animated GIFs I am exporting are so massive in file size. For example, I import a small 5-frame 650Byte GIF. I edit the size of the canvas to pad it to a square (from 54x40 to 54x54, or something like that), then I save it with the following settings:

      Animated GIF
      Exact Palette
      0 Loss
      4 Colours (5 including alpha channel)
      No dither

      And it comes out as 64.4KB. How can the file size increase by 100 times with barely any change? Even if I import it, change nothing and save the file with the same settings as above, it's still 64.4KB. Is Fireworks padding the file with unnecessary information or something?


      Thanks for any help,

      John.

        • 1. Re: Animated GIFs are ridiculously large - why?
          Level 7
          Animated GIF are large. But let's see your PNG file, please.

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          Murray --- ICQ 71997575
          Adobe Community Expert
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          "Quircus" <webforumsuser@macromedia.com> wrote in message
          news:g6fkt0$iut$1@forums.macromedia.com...
          > Hi all,
          >
          > I cannot figure out why the animated GIFs I am exporting are so massive in
          > file size. For example, I import a small 5-frame 650Byte GIF. I edit the
          > size
          > of the canvas to pad it to a square (from 54x40 to 54x54, or something
          > like
          > that), then I save it with the following settings:
          >
          > Animated GIF
          > Exact Palette
          > 0 Loss
          > 4 Colours (5 including alpha channel)
          > No dither
          >
          > And it comes out as 64.4KB. How can the file size increase by 100 times
          > with
          > barely any change? Even if I import it, change nothing and save the file
          > with
          > the same settings as above, it's still 64.4KB. Is Fireworks padding the
          > file
          > with unnecessary information or something?
          >
          >
          > Thanks for any help,
          >
          > John.
          >
          >
          >

          • 2. Re: Animated GIFs are ridiculously large - why?
            Quircus Level 1
            But the original image is an animated GIF and it's less than 1KB big! So how does it increase in size 100 times when I save it even if I don't change anything about the image before saving? There is no PNG file but I can link you to the original 650 Byte Animated GIF:

            http://www.aotplaza.com/Prod.gif

            Is it something to do with my settings perhaps? Like telling it to save extra information in the file?
            • 3. Re: Animated GIFs are ridiculously large - why?
              Level 7
              > But the original image is an animated GIF and it's less than 1KB big! So
              > how
              > does it increase in size 100 times when I save it even if I don't
              > change
              > anything about the image before saving
              ? There is no PNG file but I can
              > link
              > you to the original 650 Byte Animated GIF:

              I'm confused. What is this I am looking at. What have you done to it to
              make it increase in weight?

              --
              Murray --- ICQ 71997575
              Adobe Community Expert
              (If you *MUST* email me, don't LAUGH when you do so!)
              ==================
              http://www.projectseven.com/go - DW FAQs, Tutorials & Resources
              http://www.dwfaq.com - DW FAQs, Tutorials & Resources
              ==================


              "Quircus" <webforumsuser@macromedia.com> wrote in message
              news:g6fohk$mip$1@forums.macromedia.com...
              > But the original image is an animated GIF and it's less than 1KB big! So
              > how
              > does it increase in size 100 times when I save it even if I don't
              > change
              > anything about the image before saving
              ? There is no PNG file but I can
              > link
              > you to the original 650 Byte Animated GIF:
              >
              > http://www.aotplaza.com/Prod.gif
              >
              > Is it something to do with my settings perhaps? Like telling it to save
              > extra
              > information in the file?
              >

              • 4. Re: Animated GIFs are ridiculously large - why?
                Quircus Level 1
                Nothing...I open that 650 Byte file in Fireworks, click Save As..., choose Animated GIF and then choose the settings that I outlined above. It comes out as 64.4KB :/
                • 5. Re: Animated GIFs are ridiculously large - why?
                  pixlor Level 4
                  Don't "Save As..." because that saves all the proprietary Fireworks format metadata. Instead, choose "Export" or "Image Preview" and then set your export options to export.
                  • 6. Re: Animated GIFs are ridiculously large - why?
                    Quircus Level 1
                    Ah, thank you. Using Export... it comes out as 647 Bytes. Woo for 3-byte optimisation! ;)

                    I always assumed it only saved metadata when you chose "Fireworks PNG" as the image format :/. Oh well.

                    Thanks again! :)
                    • 7. Re: Animated GIFs are ridiculously large - why?
                      Juno41
                      I find that its also good practice to use the export preview tool to optimise file size/ quality.

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