Invalid Color Space

[marke84677179]

I recently followed advice and got InDesign CS4, an old enough version for me to import old files from PageMaker and to operate in Windows XP. The document imported fine. However, now that i am starting to try to make PDFs, I am getting a message, invalid Color Space, and a smaller message, "File contains information  not understood by the viewer." It appears I have Acrobat Reader 3.01.

Any ideas how I get around this?

[Bill Silbert · Accepted solution]

Acrobat Reader 3.0.1 was apparently released in 1997. CS4 InDesign was created several years later so most likely its default pdfs are being exported with coding that didn't exist when Acrobat 3.0.1 came out. You could see if your Export Adobe Pdf dialog window offers a compatibility with your Acrobat (notice in the screenshot below which is from CC 2019 InDesign that the earliest compatibility offered is Acrobat 4). Better yet you can download a later version of Acrobat Reader compatible with Windows XP for free from Adobe Acrobat Reader DC Install for all versions and hopefully it will be able to read your pdfs.

[Test Screen Name]

Acrobat Reader 3.01 was excellent, but I don't think anything out there will make PDFs compatible with it, except by accident.