What are your preferred PDF export settings?
Use the following export settings when you are exporting from any program like Indesign or Illustrator. This guarantees correct export of .pdf files.
EXPORT SETTINGS FOR .PDF FILES
Adobe PDF Preset must be set to: Press Quality
Preset
Compatibility must be set to: Acrobat 4 (PDF 1.3)
Compatibility
Compress Text and Line Art must be set to: Off
Compress