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  1. PDF - Wikipedia

    PDF files may contain a variety of content besides flat text and graphics including logical structuring elements, interactive elements such as annotations and form-fields, layers, rich media (including …

  2. What Is a PDF File (and How Do I Open One)?

    Dec 5, 2023 · PDF stands for Portable Document Format. The PDF format was created by Adobe in the 1990s. What is a PDF File? PDFs were created with two major needs in mind.

  3. Different PDF File Types Explained | Adobe

    Discover everything you need to know about the PDF file types with Adobe. In this handy guide, we’ll cover the different PDF types and their various uses.

  4. What Is a PDF File? (And How to Open One) - Lifewire

    Oct 2, 2024 · What Is a PDF File? Developed by Adobe, a file with the .PDF file extension is a Portable Document Format file. PDF files can contain not only images and text, but also interactive buttons, …

  5. 8 Types of PDF FIles Explained

    Jun 24, 2023 · What is a PDF/A file? How do you create one? Here is a list of 8 types of PDF files and how they are used.

  6. Types of PDF Files - Discover Different PDF Files & Uses

    Dec 5, 2025 · What is a PDF? Adobe created it as a universal file type. PDF (Portable Document Format) keeps your document’s layout and design the same on any device. Standard PDFs are used …

  7. Understanding the Different Types of PDF Files: A ... - Smallpdf

    Dec 20, 2025 · We’ll walk you through the most important PDF file types in plain language. You will see how ISO based standards work, what true, image-only, and searchable PDFs are, and how to use …