9 Replies Latest reply: Jun 14, 2013 7:29 AM by garthboy9999 RSS

    colours of imported postscript not displayed properly in illustrator

    garthboy9999

      Hi,

       

      I produced a colour map and colour gradient legend as a postscript file (.ps) using generic mapping tools software running under linux. When I import this file into illustrator (in windows 8) the colour map is fine, but the colour gradient does not display properly. It appears as a bunch of white spaces and vertical colour bands of random colour. When I then try to export the file as a .pdf the colour gradient appears as solid blue. I've also tried producing a .pdf instead of .ps but it makes no difference.

       

      It's worth noting that I have done this in the past with no problems. This particular problem first occurred a few months ago and is now persistent.

       

      Any help or suggestions are appreciated.

        • 1. Re: colours of imported postscript not displayed properly in illustrator
          Mike Gondek2 CommunityMVP

          view >> overprint preview

           

          if that does not solve your issue, can you post a screenshot please

          • 2. Re: colours of imported postscript not displayed properly in illustrator
            garthboy9999 Community Member

            Thanks for the suggestion. 'Overprint preview' did change the appearance of the colour gradient but did not fix it.

             

            This is how the image appears before I open it with illustrator:

             

            cloudslope.1890good.jpg

             

            This is how the image appears when I open it with illustrator:

             

            cloudslope.18902.jpg

             

            Thanks again for the help.

            • 3. Re: colours of imported postscript not displayed properly in illustrator
              Mike Gondek2 CommunityMVP

              What happens if you go back to an old file that used to work? I assume nothing changed like your OS or software verison since this was working. Any way to reset the preferences of your generic mapping software?

               

              What message do you get if any when openiong teh .ps file in illustrator, I get a quck flash parsing .eps file.

               

              Are you able to post a ftp link of your .ps file so we can try and see if it works for us or the gradient fails.

              • 4. Re: colours of imported postscript not displayed properly in illustrator
                garthboy9999 Community Member

                Thanks for the reply. My replies to your suggestions/questions are as follows:

                 

                I can still open the old .ps files with no issues.

                 

                I produce the .ps files using 'Generic mapping tools' running under linux OS; this system and the command code used to produce the maps has not changed or upgraded.

                 

                I upgraded from windows 7 to 8 a few months back, but as mentioned above, I can still open the old .ps images in illustrator with no problems so I don't think this is an issue.

                 

                The only messages I get as I import the .ps into illustrator are about '... missing fonts substituted' and a message asking me to select a colour mode.

                 

                Here is an ftp link to one of the .ps files: https://dl.dropboxusercontent.com/u/99980238/cloudslope.1890.ps  Let me know if you have any problems accessing the file.

                 

                Thanks again for the generous help.

                • 5. Re: colours of imported postscript not displayed properly in illustrator
                  [Jongware] CommunityMVP

                  The color bar is not a vector image ("... why not?", one may ask its developers ...) but a 4-bit 16 color bitmap instead. So it appears Illustrator cannot handle this.

                   

                  Converting it to a PDF with the Distiller works as expected, though. Even better, this PDF can be opened with Illustrator, and then, oh the magic!, the color bar image appears just fine as well.

                  • 6. Re: colours of imported postscript not displayed properly in illustrator
                    [Jongware] CommunityMVP

                    (Annoying footnote: your PS file imports *perfectly* into InDesign!

                     

                    It's "annoying" because, well, why should ID's PostScript Import be better! than the PostScript flagship program Illustrator originally was designed to be!)

                    • 7. Re: colours of imported postscript not displayed properly in illustrator
                      garthboy9999 Community Member

                      For some reason this process still does not work for me. The .pdf displays fine with reader/acrobat, but when imported into illustrator it looks like this:

                       

                      cloudslope.1890.jpg

                      I tried different distiller output settings,but none worked.

                       

                      I also tried to import the .ps file into indesign (which I've never used before), as you suggest, but I got an error about the program not being able to recognize the file format (maybe a plugin missing?).

                       

                      Why would this work for you but not me? Is it possible that some of my illustrator settings need to be modified?

                       

                      Thanks.

                      • 8. Re: colours of imported postscript not displayed properly in illustrator
                        [Jongware] CommunityMVP

                        There are no import options to change in Illustrator to make it work. Usually I argue against using Illustrator as a general purpose PDF editor, but since it seems to be your only option here it is better than nothing (i.e., what you got from Illy itself).

                         

                        It's worth noting that I have done this in the past with no problems. This particular problem first occurred a few months ago and is now persistent.

                         

                        The problem is that the color bar is a 4-bit color image. Did that recently change with an update of your mapping software? Open one of your Illy files that were okay and check the color bar -- is it vector or bitmap? If it's a bitmap, can you "edit" it with Photoshop? (It's not a good day to be an Adobe spokesperson: much to my surprise, Top Market best Seller Photoshop cannot edit 4-bit color images!)

                         

                        Let's talk Versions as well. I distilled with Distiller 9, but it seems that is not the magic solution (as you already see that it worked). Both Illustrator and InDesign: CS4. Platform: Windows 7.

                        That combo works for me.

                         

                        A minor -- relatively unrelated -- note:

                         

                        garthboy9999 wrote:

                         

                        I also tried to import the .ps file into indesign (which I've never used before), as you suggest, but I got an error about the program not being able to recognize the file format (maybe a plugin missing?).

                         

                        No, that indicates you attempted to "open" your ps. You must create a new document first, then use "Place" -- Adobe's terminology for what every other program on the planet calls "Import". It's relatively inconsequential, because either failure or success with InDesign doesn't mean that much; I only included it to point out another blatant unnecessary difference between the two programs.

                        • 9. Re: colours of imported postscript not displayed properly in illustrator
                          garthboy9999 Community Member

                          No, the mapping software has not changed, unless some libraries used by it were automatically updated or something.

                           

                          I figured out how to check if the colour bar is an embedded bitmap in illustrator. I then found out that the old .ps files that are importing properly also contain the embedded bitmap colour bar, same as the new .ps files that are not displaying properly.

                           

                          I'm not very knowledgable in illustrator, but following a few online posts I tried to convert the bitmap colour bar to vector within illustrator but the colour bar still did not display correctly.

                           

                          Versions: Adobe distiller 9; Adobe illustrator CS5; platform: Windows 8.

                           

                          Thanks!