What is a .pdf comprised of?

PDF

.PDF files are comprised of many things. They can host vectors, pixels, jpegs, psd’s…just check the chart below to see what I mean.

Chart pdf

These files are all supported in the .PDF file to make them viewable in one place.

  • “PDF was developed in the early 1990s as a way to share documents, including text formatting and inline images, among computer users of disparate platforms who may not have access to mutually-compatible application software”

Whatever is embedded into the .PDF file will retain it’s properties. If you insert a vector graphic, it will remain vector and not convert to .jpeg or another format.
Text remains as text, and is highlightable like text should be.

Sources:

http://en.wikipedia.org/wiki/Portable_Document_Format

http://helpx.adobe.com/acrobat/kb/supported-file-formats-acrobat-reader.html

– Hunter Kelley

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