PDFfaili

PDFfaili, also known as PDF files, are a widely used document format developed by Adobe Systems in the 1990s. The acronym PDF stands for Portable Document Format. Its primary purpose is to present documents in a manner independent of application software, hardware, and operating systems. This means a PDF file will look the same on any device or computer, regardless of how it was created or is being viewed.

PDFs are designed to preserve the original formatting of a document, including fonts, images, and layout, making them ideal for sharing and printing. They can contain a variety of content, such as text, graphics, interactive elements like form fields, and even multimedia. Security features, such as password protection and restrictions on printing or copying, can also be incorporated into PDF files.

Numerous software applications allow users to create and edit PDF files. Adobe Acrobat is the most well-known, but many other programs, including word processors and design software, offer PDF export options. Viewing PDF files is also widely supported, with free readers available for most operating systems and web browsers. The widespread adoption and standardization of the PDF format have made it a de facto standard for document exchange in both personal and professional settings.