PDF reference
‘PDF Reference’ provides a description of the Portable Document Format, and can be downloaded from Adobe at http://www.adobe.com/devnet/pdf/pdf_reference.html and http://www.adobe.com/devnet/pdf/pdf_reference_archive.html
PDF files produced from this program are marked as %PDF1.4
| PDF Reference Manual Edition | PDF File Version | Acrobat Reader Version |
|---|---|---|
| 3rd | %PDF1.4 | 5.x |
| 4th | %PDF1.5 | 6.x |
| 5th | %PDF1.6 | 7.x |
| 6th | %PDF1.7 | 8.x |
| PDF 32000-1:2008 1st edition | %PDF1.7 | 9.x |