PDF Evolution: ISO Standards, Subsets, Versions and Types

PDF versions and subsets

The Portable Document Format (PDF) was created by Adobe in the last decade of the 20th century.

  • 1991 Dr. John Warnock, Adobe’s co-founder, started The Camelot Project
  • 1992 – Camelot evolved into PDF
  • 1993 – The tools for creating and viewing PDFs were released

The format was developed with the idea that every document should be readable and printable on any device while preserving the fidelity of the content.

PDF Versions

As expected, the format wasn’t popular from the start. Nevertheless, the PDF evolved steadily over the years to become one of the most used electronic document file formats today.

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