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Creating and Editing PDFs With Acrobat 9

Starting with Adobe Acrobat 9 (both Distiller and Acrobat), new default settings aggressively compress PDF files, including the cross reference (xref) table. The xref table is the most important part of the PDF; any application reading PDFs must use it to find content in the file. The Imposition Publisher is expecting a plain text xref table, not a Flate/ZIP compressed table, so it rejects the PDF file.

To ensure that Acrobat 9 creates compatible PDF files, you need to adjust your settings in Distiller and in Acrobat.

1. Distiller 9
   In Distiller, in the Settings menu, choose Edit Adobe PDF Settings... In the General pane, make sure Object Level Compression is set to Tags only.
   
   Do not use the Maximum compression setting, as this will produce an incompatible PDF file.
   
   
   
   This should ensure PDFs created with Distiller 9 are compatible with Imposition Publisher.
   
   The Acrobat 9 printer also uses Distiller, so the steps above apply. (When you print to the Acrobat 9 printer, a PostScript file is created and then passed to Distiller in the background.)
   
   
2. Acrobat 9
   The Acrobat viewing/editing application can also apply the new compression settings.
   
   If you receive an incompatible PDF file, you can use File, Save As to turn off the maximum compression and make the file compatible.
   
   In the Save As dialog, set the Format/Save as type to Adobe PDF Files, Optimized and hit the Settings button.
   
   
   
   On the PDF Optimizer window, Set the Make compatible with: pop up menu to Acrobat 8.0 and later.
   
   
   
   To be sure, check the Clean Up pane and make sure that the Object compression options are set to Compress document structure, not Compress entire file.
   
   
   
   Do not use Compress entire file, as this will produce an incompatible PDF file.
   
   The Compress entire file option has been around since Acrobat 6, but was not the default setting. With Acrobat 9 it has become the default setting. The previous default was Compress document structure, which still applies compression but leaves the xref table as uncompressed text.