Portable Document Format

In short

Declarative specification of printed pages, developed by Adobe after PostScript, now standardized. Deals with the most complex material that is printable, takes care of font and other graphics inclusions, makes text searchable. See also PDF/A. PDF looks perfect from the outside, it may look horrible from the inside.

item info
types Image
preferred ⚠️ under conditions
extensions .pdf
related formats GIF, JPEG, PDF/A, PNG, PostScript, SVG, TIFF
wikipedia PDF

See also