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For example, Adobe explains, "The primary use of JPEGs is for images, whereas PDFs can handle all sorts of text and image-based documents. Because JPEGs compress image data, its file sizes tend to ...
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Images, audio and video files must be uploaded into Wikipedia using the "Upload file" link on the left-hand navigation bar. Only logged in users can upload files. Once a file is uploaded, other pages can include or link to the file. Uploaded files are given the "File:" prefix by the system, and each one has an image description page.
Sometimes, using a symbolic image to convey a concept is more impactful than words. This page compiles examples of such images along with their corresponding files, making them easy to copy and use. You are welcome to utilize these examples and, if you wish—while accepting full responsibility—contribute to expanding this collection.
Continuously varied JPEG compression (between Q=100 and Q=1) for an abdominal CT scan. JPEG (/ ˈ dʒ eɪ p ɛ ɡ / JAY-peg, short for Joint Photographic Experts Group and sometimes retroactively referred to as JPEG 1) [2] [3] is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.
If you need a test image for permanent demonstration purposes, for instance in a template's documentation, then instead use for instance the PNG image or Example-serious.jpg. File link button. The Ogg file is the example inserted when a user clicks the "file link" button in the edit toolbar.
This page explains how to place images on wiki pages, where the image acts as a hypertext link to somewhere other than the image description page. Care should be taken that this is done in compliance with the licensing terms of the file in question, particularly if they require proper attribution.
The image acts as a hypertext link to the specified page. Do not enclose the page name in square brackets. If Page is a URL, the image acts as an external link; otherwise it links to the named Wikipedia page. Image maps offer more possibilities. [[File:Example.png| link=Name of page |alt=Example alt text]]