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As stated in that help page, Digital Editions does not yet support Mac OS 10.5. Your only option to read eBook protected PDF files at this point is to install Acrobat Reader 7 (and use it open the .etd files with). 10.5 support is in the works for are next release (1.5), which is currently under fevered development
So, if I uninstall my Acrobat Reader 8, then install Acrobat Reader 7, I will be able to access my textbook?
If so, which version of Acrobat Reader 7 should I download, and where can I download it? (I tried searching for a download, but I have only found updates - I assume that those are patches and that I still need to find an Acrobat Reader 7 full version somewhere.)
First I do need to note here that Adobe does not support running Reader 7.0.9 on Mac OS 10.5, although several people on this forum have reported that they have gotten this working just fine for reading protected eBooks. If you want a supported configuration (for 10.5) you will need to wait until Digital Editions 1.5 comes out.
If you still want to try, you can get Adobe Reader 7.0.9 from:
You will need to select 10.4.3-10.4.10 PowerPC as your OS in order to have Reader 7.0.9 as a download option.
Then once installed you want to associate Reader 7 with the .etd files, which you can do either by uninstalling Acrobat 8, or:
* Find an etd file and do Get Info (command I) on it.
* In the Get Info Dialog "Open With" section, select Reader 7 from the drop down list
* Finally click on the "Change All..." button
Also note that there is now a beta of DE 1.5 available which DOES work on Leopard...
I accidentally installed the 1.5 Beta on top of my working copy of 1.0 and now I get a DRM error and cannot open new documents. How do I uninstall Digital Editions to start over?