PDF (Portable Document Format) is the file format 📝Adobe introduced in 1993 to keep a document's layout, fonts, and graphics identical on any screen, device, or printer. It is how the world keeps a document whole.
PDF grew directly out of 📝PostScript: where PostScript described a page for a printer, PDF packaged that same fidelity into a single file anyone could open, view, and print without the original software or fonts. Adobe Acrobat gave people the tools to create and read those files, and over three decades PDF became the default for contracts, forms, manuals, and archives everywhere.
In 2008 Adobe released PDF as an open standard, ISO 32000, so the format no longer depended on any one company to endure. That decision is a large part of why PDF is now universal — trusted by governments, businesses, and individuals as the neutral container for a finished document.
We built PDF to solve a simple, human problem: a document should look the same to the person who receives it as it did to the person who made it. Handing it to the world as an open standard was the point, not a concession.