FDA Accepting PDF 1.7 and Older Versions
As mentioned in an earlier post written by Rahul Mistry, the FDA currently accepts PDF 1.4 and will soon except PDF 1.7. Does this mean that you need to upgrade all of your PDF’s from 1.4 to 1.7?
There is a very simple answer – no.
The specifications for PDF are backward inclusive. This means that the PDF 1.7 specification includes all of the functionality previously documented in the Adobe PDF Specifications for versions 1.0 through 1.6. Below is a list of all of the new features that Adobe has implemented in the PDF specification.
If you are not using any of the new features below, a PDF 1.7 file and PDF 1.1 file are identical, with the exception of the version number which is embedded in the metadata.