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Community Notes is a feature on X (formerly Twitter) where contributors can add context such as fact-checks under a post, image or video. It is a community-driven content moderation program, intended to provide helpful and informative context, based on a crowd-sourced system.
A software application such as Adobe Photoshop, LibreOffice, or Microsoft Word is required to create .PDF files, but Acrobat Reader supports viewing of .PDF files. [2] A file format must have structural information that allows a file viewer to handle different byte orders, code pages or newline styles.
As with Adobe Acrobat, Nitro PDF Pro's reader is free; but unlike Adobe's free reader, Nitro's free reader allows PDF creation (via a virtual printer driver, or by specifying a filename in the reader's interface, or by drag-'n-drop of a file to Nitro PDF Reader's Windows desktop icon); Ghostscript not needed. PagePlus: Proprietary: No
Foxit PDF Reader (formerly Foxit Reader) is a multilingual freemium PDF (Portable Document Format) tool that can create, view, edit, digitally sign, and print PDF files. [3] Foxit Reader is developed by Fuzhou, China-based Foxit Software. Early versions of Foxit Reader were notable for startup performance and small file size. [4]
Twitter Zero is an initiative undertaken by Twitter in collaboration with mobile phone-based Internet providers, whereby the providers waive data (bandwidth) charges—so-called "zero-rate"—for accessing Twitter on phones when using a stripped-down text-only version of the website.
Sumatra has a minimalist design, with its simplicity attained at the cost of extensive features. For rendering PDFs, it uses the MuPDF library. [4]Sumatra was designed for portable use, as it consists of one file with no external dependencies, making it usable from an external USB drive, needing no installation. [5]
The basic design of how graphics are represented in PDF is very similar to that of PostScript, except for the use of transparency, which was added in PDF 1.4. PDF graphics use a device-independent Cartesian coordinate system to describe the surface of a page. A PDF page description can use a matrix to scale, rotate, or skew graphical
Xpdf can decode LZW and read encrypted PDFs. The official version obeys the DRM restrictions of PDF files, [ 7 ] which can prevent copying, printing, or converting some PDF files. [ 4 ] There are patches that make Xpdf ignore these DRM restrictions; [ 8 ] the Debian distribution, for example, has these patches in place by default.