8 Replies Latest reply on Feb 9, 2009 12:18 PM by chris3174

    Blue pixelated background problem - why?

    chris3174
      I created a small PNG image with a transparent background inside Fireworks. It looks like this. I then added my image to the bottom of a PDF file. Unfortunately, once the image is added to a PDF file, it acquires a blue-ish pixelated background. Here is a screenshot of what the image looks like inside the PDF.

      Why is this happening? How do I add colored text to the bottom of a PDF file, WITHOUT the image suddenly acquiring a blueish/pixelated background?
        • 1. Re: Blue pixelated background problem - why?
          Level 7
          chris3174 wrote:
          > I created a small PNG image with a transparent background inside Fireworks.
          > http://holisticdentalcenters.com/test/transparentbkgrnd.png. I then added my
          > image to the bottom of a PDF file. Unfortunately, once the image is added to a
          > PDF file, it acquires a blue-ish pixelated background. Here is a screenshot of
          > http://holisticdentalcenters.com/test/bluepixelated.gif
          >
          > Why is this happening? How do I add colored text to the bottom of a PDF file,
          > WITHOUT the image suddenly acquiring a blueish/pixelated background?
          >
          Based on the optimization settings in the PNG file, it appears you are
          exporting a jpeg file, which doesn't support transparency. Jpegs and
          text are not a good mix, either. Better off to export it as either a GIF
          or 8 bit PNG file, then add it to your PDF. Remember also to take into
          consideration the printing resolution of your PDF. By default, FW is set
          to 96ppi for printing, so you may need to create a new document at the
          proper printing resolution for your PDF file.

          HTH

          --
          Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
          http://www.communityMX.com/
          ---
          .:Adobe Community Expert for Fireworks:.
          http://www.adobe.com/communities/experts/members/206.html
          ---
          • 2. Re: Blue pixelated background problem - why?
            chris3174 Level 1
            Hi Jim. Thanks for your suggestions. I do need clarify one point...The image that I imported into the PDF file *WAS* a PNG.

            The JPEG image that I linked to (above) is simply a screenshot capture image. Just to give you an idea of what I was seeing. (My screenshot capture software only produces JPEG's.) I’m not sure why the PNG is blue/pixelated when added to the Adobe PDF file. However, I have found a work-around. I removed the PNG image, and just typed the colored text directly into the PDF using Adobe's PDF editing program.

            In your last sentence, you wrote: "By default, FW is set to 96ppi for printing, so you may need to create a new document at the proper printing resolution for your PDF file."

            What do you think the "proper printing resolution" would be?

            • 3. Re: Blue pixelated background problem - why?
              Level 7
              chris3174 wrote:
              > Hi Jim. Thanks for your suggestions. I do need clarify one point...The image
              > that I imported into the PDF file *WAS* a PNG.
              >
              > The JPEG image that I linked to (above) is simply a screenshot capture image.
              > Just to give you an idea of what I was seeing. (My screenshot capture software
              > only produces JPEG's.) I?m not sure why the PNG is blue/pixelated when added
              > to the Adobe PDF file. However, I have found a work-around. I removed the PNG
              > image, and just typed the colored text directly into the PDF using Adobe's PDF
              > editing program.
              >
              > In your last sentence, you wrote: "By default, FW is set to 96ppi for
              > printing, so you may need to create a new document at the proper printing
              > resolution for your PDF file."
              >
              > What do you think the "proper printing resolution" would be?
              >
              >
              >
              Hi Chris:

              Not sure if this had an impact or not, but was it a flattened PNG or the
              Fireworks PNG? If flattened, was it 8-bit, 24 bit or 32? Again I ask
              this because your export setting in FW were set to JPEG. So my thought
              is you actually just saved the FW png file and tried to place that. FW
              PNG's are not standard, flat PNG's which could be where the problem arose.

              Proper printing resolution really depends on your output device, but
              usually 300ppi is a a good start.



              --
              Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
              http://www.communityMX.com/
              ---
              .:Adobe Community Expert for Fireworks:.
              http://www.adobe.com/communities/experts/members/206.html
              ---
              • 4. Blue pixelated background problem - why?
                chris3174 Level 1
                Thanks Jim. Yes, it was a Fireworks PNG that I imported into the PDF file. I didn't realize that Fireworks offered 2 different types of PNG files. (Guess I learned something new today!) I have used the Fireworks PNG setting with no problems for over 2 years now---until yesterday, when it encountered the PDF.

                Do you think the blueish/pixelated background problem would disappear if I imported a flattened PNG into the PDF?
                • 5. Re: Blue pixelated background problem - why?
                  Level 7
                  chris3174 wrote:
                  > Hi Jim. Yes, it was a Fireworks PNG that I imported into the PDF file. I
                  > didn't realize that Fireworks offered 2 different types of PNG files. Guess I
                  > learned something new today.
                  >
                  > Do you think the blueish/pixelated background problem would disappear if I
                  > imported a flattened PNG into the PDF?
                  >
                  Only one way to find out . . ;-) Just make sure you've got a suitable
                  resolution.

                  FYI, if you are using FW CS4, you can export PDF's directly from Fireworks.

                  --
                  Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
                  http://www.communityMX.com/
                  ---
                  .:Adobe Community Expert for Fireworks:.
                  http://www.adobe.com/communities/experts/members/206.html
                  ---
                  • 6. Re: Blue pixelated background problem - why?
                    chris3174 Level 1
                    Thanks again, Jim. It seems the flattened PNG file produced the same blueish/pixelated background problem. I used the default settings for "Flattened PNG" and there was no change. Not sure what I’m doing wrong.

                    In your last sentence, you wrote, "You can export PDF's directly from Fireworks." Are you recommending that I save the image as a PDF (from within Fireworks) and then attempt to add a PDF image to a PDF file?

                    • 7. Re: Blue pixelated background problem - why?
                      Level 7
                      chris3174 wrote:
                      > Thanks again, Jim. It seems the flattened PNG file produced the same
                      > blueish/pixelated background problem. I used the default settings for
                      > "Flattened PNG" and there was no change. Not sure what I?m doing wrong.
                      >
                      > In your last sentence, you wrote, "You can export PDF's directly from
                      > Fireworks." Are you recommending that I save the image as a PDF (from within
                      > Fireworks) and then attempt to add a PDF image to a PDF file?
                      >
                      >
                      >
                      Hey Chris:

                      Not really recommending that, unless you have built an entire mock-up in
                      FW to begin with.

                      I'll try a couple things and see if I can get a better result with the
                      file you made available.

                      --
                      Jim Babbage - .:Community MX:. & .:Adobe Community Expert:.
                      http://www.communityMX.com/
                      ---
                      .:Adobe Community Expert for Fireworks:.
                      http://www.adobe.com/communities/experts/members/206.html
                      ---
                      • 8. Re: Blue pixelated background problem - why?
                        chris3174 Level 1
                        Hi Jim. Yes, it's just a single image--not a mockup. Thanks very much for seeing what you can do with the image! Please let me know how it goes.

                        Chris